Out-of-pocket and Catastrophic Health Expenditures Puzzle: The Costa Rican experience María Paola Zúñiga-Brenes*, Juan Rafael Vargas** Alberto Vindas*** * Professor in Economics, University of Costa Rica. Researcher Associate at Development Observatory and Central American Population Center. ** Professor of Economics, University of Costa Rica and Research Associate at Central American Population Center *** Research assistant at Central American Population Center, University of Costa Rica
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Out-of-pocket and Catastrophic Health Expenditures Puzzle:
The Costa Rican experienceMaría Paola Zúñiga-Brenes*, Juan Rafael Vargas**
Alberto Vindas***
* Professor in Economics, University of Costa Rica. Researcher Associate at Development Observatory and Central American Population Center.** Professor of Economics, University of Costa Rica and Research Associate at Central American Population Center*** Research assistant at Central American Population Center, University of Costa Rica
* Professor in Economics, University of Costa Rica. Researcher Associate at Development Observatory and Central American Population Center .
** Professor of Economics, University of Costa Rica and Research Associate at Central American Population Center
*** Research assistant at Central American Population Center, University of Costa Rica
Out-of-pocket and Catastrophic Health Expenditures Puzzle: The Costa Rican experience
María Paola Zúñiga-Brenes* Juan Rafael Vargas**
Alberto Vindas***
Abstract
This chapter addresses the paradox of why the out-of-pocket spending in Costa Rica is about 20% while catastrophic expenditures are small. Out-of-pocket expenses, the financial burden of out-pocket, catastrophic health expenditures and impoverishing expenditures are computed from the National Income and Expenditure Survey 2004. This opens the search for which are the factors that affect these variables. The results show that spending on medical consultation (where dental expenses are high) and expenditures on drugs are the main components of out- of-pocket spending. Catastrophic health expenditures may occur when families incur the expenses mentioned above and not in hospitalization outlays as it is the case at other LDC experiences. Although these expenses are very small, the results are very sensitive to the indicator used, and the definition of capacity to pay. The results on risk factors analysis show the conditions under which the health care services network is accessed and the role waiting lists have on out-of-pocket spending but not on the financial burden of out-of-pocket expenditures for households with catastrophic expenditures. Costa Rica could be viewed as a feasible target health system arrangement for countries of similar size and relative resource lacking, so it could lead to financial protection environments of the nature suggested by World Health Organization.
1. Introduction
The World Health Organization (WHO) recommends reducing the dependence of out-of-pocket
expenditures to fund the people’s own health care and that of their families. Because a funding
mechanism for the health systems has the purpose of raising funds to financially protect the
individual when he is facing a health event (risk pooling)) .
This chapter discusses the financial burden of out-of-pocket spending (HFB), out-of-pocket
expenses (OOPS), the catastrophic expenditure in health (CHE) and impoverishment expenditure
2
(IHE). Catastrophic health expenditures are defined as the proportion of out-of-pocket payments
that exceeds a certain percentage (threshold) of capacity to pay (CP). The impoverishing health
expenditures (IHE) are those that make the person extremely poor. To measure health
expenditures the National Income and Expenditure Survey (ENIG) 2004 is used. The capacity to
pay is defined as total expenditure less subsistence expenditure (SE), and this rises three criteria
depending on how SE is defined: a) SE is the household food expenditure (WHO, 2000), b) SE as
the poverty line, and c) SE as endogenous poverty line(Xu et al. 2003)1. Based on these
definitions six indicators are constructed: a) (WHO, 2000), b) Xu et al (2003), c) which is called
as Wagstaff et al, because of national poverty line (NPL) (WvD1, d) Wagstaff et al, WVD-2
because international poverty line (IPL) e) an hybrid with NPL (hybrid1)2, f) an hybrid with IPL
(hybrid2).
The contribution of this chapter is empirical as well as methodological one. From the first area of
knowledge, it combines composition analysis with progressiveness approach to help
understanding what lies behind HFB, OOPS and CHE in Costa Rica. It also explores the health
system characteristics as risk factors that may explain HFB and OOPS behaviour. From the
methodological point of view, the main contribution is discussing the robustness of results to
different definitions of affordability indicators, and its thresholds. Additionally, it has the novel
1 (Xu et al, 2003) use the average food expenditure of families, for those whose participation in food expenditure are in the percentile 45-55.I If food expenditure is less than this household food expenditure is used instead. 2 The hybrid is similar to WvD, indicator but it is replaced by total spending on food for the family when the CP <0, and SE is NPL.
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feature of combining survey data with geographical data about access on health care services
networks and its associated waiting times for regression analysis.
The second section presents the data supporting this research. The next section briefly illustrates
why it is important to measure equity in health financing, CHE and IHE. It reports on some early
studies for Costa Rica. The fourth section sets out the composition of health spending. The fifth
part presents the results in terms of progressiveness of OOPS, HFB, CHE, IHE, along with the
robustness of results to the indicators, their definitions of affordability and the stated thresholds.
The sixth section discusses the possible risk factors that affect these variables (OOPS, HFB,
CHE), when the main hypothesis is OOPS are high, but not catastrophic due to the nature of the
national health system and the features of the waiting lists syndrome. ENIG data is
complemented with geographic information on the network access to health care services and its
associated waiting lists.
2. Health and expenditure data
The 2004 National Income and Expenditure Survey (ENIG), prepared by the National Statistics
and Censuses Institute (INEC), provides the quantitative basis for these study. Its main task is to
develop the basic consumer basket and its weights to construct the Consumer Price Index and the
basic needs basket to measure poverty. The survey is representative of the whole country and the
sample size is 4132 families. ENIG provides with no information on health status or on the
characteristics of the health system and that means a limitation for the analysis. Its design is
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probabilistic for geographic areas, stratified (17 layers), and it follows a two-stage procedure. The
family is the unit of study for this survey and its capacity to pay is defined as total spending3
minus the subsistence expenditure, estimated on any of the above mentioned four poverty lines.
The expenditure ability includes all monetary expenditures. Furthermore, it excludes expenditure
in kind (either donated by another household or by an institution), but it includes imputed rental
value of owner-occupied housing, which it is often the most important asset for poor families and
for senior citizens households. The (Informe de la Persona Mayor 2008) shows families with
homeownership are less vulnerable to poverty. The imputed rental value of owner-occupied
housing, is also taken into account for the GDP definition on National Accounts. (Barrios 2005)
reinforces that finding.
Out-of-pocket spending on health, as mentioned above is the sum of payments for medical
consultation, medicines, hospitalization (at public or private institutions), laboratory tests,
therapeutic equipment such as prosthetics, eyeglasses, etc. It does not include private health
insurance. The summary statistics of the variables used for analysis are included in Table A1.1.
The analysis of determinants of HFB has three further limitations: i) it provides no information
on the health status variable, thus it possibly results in an omitted variable problem. ii) the
3 The World Bank recommends (Deaton, 1997) using expenditure rather than income because i) income is often under-reported, especially when a significant proportion of the workforce is self-employed and / or employers in the economy, ii) income has a seasonal component, and income approaches better the notion of permanent income, and iii) finally the use of cost is based on the micro approach of the monetary gain metric
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insurance status could be considered endogenous, as the family can be assured to cope with high
health costs, iii) there is a very small percentage of families with CHE (at the 20% threshold).
The 42 alternative ways by which the families surveyed by the ENIG access the hospital network
were explicitly defined. Given its geographical location4 it yields dummy variables for the
regressions later on. Furthermore, data on the number of people on waiting lists was gathered.
This kind of information is available at the hospital and clinic basis for specialist medical
consultation, for some special procedures5 and for surgery as well. For these cases, it was not
possible to establish where the health expenditure was incurred, and the assumption adopted is
the person faces the public system specific institution where it is geographically ascribed;
therefore it has to deal with the relevant waiting list. Knowledge of this situation might lead the
person to incur into the out-of-pocket expense rather than waiting for the relevant place on the
queue. As, it will be discuss this seems to occur only for waiting list in medical procedures.
Matching survey with geographic data has the disadvantage that information is partial, as it only
includes information from the districts selected in the sample. There are four specific difficulties:
i) there are hospitals that have waiting lists in certain specialties or procedures, but those districts
were not selected in the ENIG sample, ii) no information for waiting list in medicines and
therapeutic devices is available, iii) despite institutional efforts made it has not been possible to
4 Only for some cases could not be established if the family belongs to a network or to other according to the district of residence. In the case of having to allocate waiting lists it was assigned the average of both networks 5 The list of procedures in 2004 included general ultrasound, mammography, gastroscopy, gynecologic ultrasound, electrocardiogram, etc.
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detect the waiting list in all cases, especially those when the doctor tells the patient not to return
within a period of time, so there a place on the queue becomes available, iv) it is not feasible to
combine the length of the waiting list with the number of people listed. The behaviour of waiting
lists fluctuates. In 2004, the total waiting list was 103.604 while it exceeded 300,000 in 2000. By
2008 the total amounted to 295.621 cases.
3. Why is it important to measure OOPS along with CHE, IHE in Costa Rica?
The provision and financing of health care are key goals for health systems worldwide. Equity
financing is understood to mean each agent contributes according to its ability to pay while equal
access requires the individual receiving care according to its need. (Wagstaff & Van Doorslaer,
1993). This is so stated in order to separate the use of health care service from the capacity to
pay. A system that depends on out-of-pocket expenditures may be inequitable, because it may
exclude individuals from access to health services, therefore causing them a financial disaster or
to making them impoverished.
150 million persons worldwide have catastrophic health expenses and 100 million are
impoverished by having to face out-of-pocket health spending (Xu et al, 2005). WHO also notes
that expenditure is catastrophic when the prepaid mechanism is insufficient or the capacity to pay
is reduced. They also recommend to increase coverage of pre-payment mechanism, to design a
benefits package to protect the poor, and to determine an appropriate level of co-payments.
These measures appear to be logical to reduce the dependence of out-of-pocket spending, but in a
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country like Costa Rica, where CHE is small, the questions then are: what does high OOPS
spending matters, which are the relevant mitigation measures, and what is its relationship with
catastrophic spending?.
Equity financing can be assessed through the progressiveness feature of the OOPS or by
measuring CHE and GE. (Zuniga-Brenes, 2008)6 measured progressiveness, using the (Davidson
and Duclos, 1997) approach. Other studies agree that CHE is relatively small in Costa Rica.
Zuniga (2002, 2006) estimated a version in financial health contribution index, and CHE using
data from the 1988 ENIG and from the 1992 Social Investment Survey (ENISO). (Xu et al.,
2003) presented results on CHE for Costa Rica in a multi-country and (Briceno et al., 2006)
calculated it using the ENIG 2004. Table 1 summarizes the results of CHE of the studies
mentioned above. They differ because: i) the polls are different (in 1988 and 2004 the survey
used is the ENIG, while in 1992 is a more aggregated type survey quality of life), ii) they use
different thresholds (30%, between 30% and 50%, 40% and over 50%, etc.), iii) uses different
measures of subsistence income, iv) different adjustments are made for consistency with national
health accounts, v) they apply different scales for family size. Finally, past performance, as well
as the (Zuniga-Brenes 2008) study shines the importance of taking into account how they are
made, measurements and definitions of capacity for purposes of comparative studies.
6 (Zuniga-Brenes, 2008) examines whether health funding is equitable from the point of view of progressivity, using the stochastic dominance approach posed by (Davidson and Duclos, 1997) to analyze progressivity in taxes.
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Table 1
Summary of catastrophic health spending studies in Costa Rica
0,79 2004 30 Briseño, Elizondo et al. (2006) 0,42 2004
40 Houshold Food /income
1,6 2004 30 NPL 0,73 2004 40
Source: authors’elaboration
4. Why is it important to study the Costa Rican health system and health expenditures?
Costa Rica is a low middle income country, but it is a high human development country; it
ranked number 54 in 2009 Index. United Nations (UN, 2009) ranks it as the second highest life
expectancy country in the Western Hemisphere, after Canada. Probably these achievements were
result of no army since 1948 and a 20% of gross domestic product (GDP) being devoted to social
programs, with public expenditure on health amounting around 6% of GDP. In Costa Rica the
prepaid mechanism coverage is high, there is a protection system for the poor (non-contributory)
and there is no co-payments in the public insurance system, with all prescriptions granted with no
patient’s payment. In a parallel chapter the organization of the health system is described.
Figure 1 shows the composition of OOPS, which integrates private expenditure on medicines,
doctor visits, hospitalization, surgery and laboratory tests, etc.
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Figure 1
Total health expenditure and out-of-pocket expenditure breakdown in Costa Rica
Source: Author’s calculation from ENIG 2004
In 2004 about 84% of the private expenditure is made up of private medical consultation and
medicines, but the private hospital expenditure amounts to less than 0.37%. The right hand side
graph shows the composition of total health expenditures, around 70% is financed through social
health insurance.
5. Out-of-pocket, progressivity of out of pocket, catastrophic expenditures, and
impoverishment
This section is divided into three parts: the first presents an analysis of progressivity on
OOPS by type, the second the results of CHE and the third IHE. The results of CHE are
presented for the six indicators mentioned and the unit of analysis is the family.
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5.1. Progressivity of out-of-pocket expenditures
One way to measure equity is through the progressivity curve based on (Davidson and Duclos,
1997), which shows the difference between the Lorenz curve for capacity to pay and the
concentration curve for health payments. When the difference between them is positive, it means
that the lower p percent (p%) of the population have a greater cumulative share of capacity to
pay than cumulative share of health expenditures in which they incur. For example if the p% of
population at the bottom part of the distribution have 10% of its whole distribution of capacity to
pay (cumulative share), and 8% of its whole distribution of health expenditures, progressivity is
of 2%, because people are contributing 2% less relatively to its cumulative share of capacity to
pay. The results for two measures of capacity to pay are presented in Figure 2.
Figure 2
Progressivity of out-of-pocket expenditures
Source: Authors’ calculation from ENIG 2004
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Results highlight the progressive pattern of OOPS especially for medium capacity to pay deciles.
Families between the 40% and 80%, are contributing with health expenditures less than
proportional while for top deciles (up to 85%), households are contributing more than
proportionately to health expenditures7. For the bottom deciles is slightly proportional, with some
negative differences. This measure is different from the average of the ratio of health payments
relative to capacity to pay because it takes into account what happens in the entire cumulative
distribution, not just at the specific decile rank. Progressivity for OOPS in drugs, therapeutic
devices, medical, dental and laboratory tests is shown in Figure 3.
Figure 3
Progressiveness curve of out-of-pocket spending by type
Source: Authors´ calculation from ENIG 2004
7 These results are consistent for several measures of ability to pay. The only difference is when the total spending of out-of-pocket spending is progressive for about 90% of distribution
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5.2. Catastrophic health expenditures
Catastrophic spending is defined as the consumer's out-of-pocket expense when it exceeds a
given threshold, namely k% of his CP. The percentage of households reporting catastrophic
expenditure is sensitive to: i) the definition of capacity to pay; ii) how expenditure is measured,
and iii) the indicator of catastrophic expenditures used. Figure 4 presents the proportion of
households with CHE for the three thresholds and for each of the six indicators mentioned in
section 1. The CHE is relatively small, varying between 1.56% and 0.31% for a threshold
k=30%. This is an outstanding feature of Costa Rica, as it was first shown by (Xu et al., 1993).
Figure 4 Costa Rica: Catastrophic Health Expenditures
Source: Authors’ calculation from ENIG 2004.
At the 30% threshold, the percentage of households with catastrophic expenditure is higher for
WvD1 poverty line indicator (1.56), and it is lower when the (Xu et al, 1993) (0.31) is used. The
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later is slightly lower than the WHO (0.43) procedure calculation. The results are shown in Table
A1.3. Those results are due to the way WvD1, and WvD2 treats all poor people with catastrophic
expenditures, not allowing (as the other approaches do) for the family to reduce their subsistence
income to cope with health costs, namely, to reduce the expense of subsistence food expenditure.
These results are consistent for a 20% threshold. For 40% threshold there are just too few
observations to yield a reliable measure. The national poverty line is almost double the
international line. Therefore, WvD2 which use IPL tends to be closer to the rest of the
calculations that includes food adjustment, although it does not consider the possible reduction
in the subsistence expenditures to smooth spending on health. A person may have CHE not
because his OOPS are high in absolute terms, but because his CP is very small. Therefore,
people with low CP may have higher incidence of CHE, however as it will be discuss results are
sensitive to how each indicator treats people with very low CP.
Figure 5 shows the percentage of households with CHE to be lower in the third and fourth
quintile, and to be greater for the first quintile for WvD1, WvD2, Hybrid1, Hybrid2. That does
not happen for the WHO or by Xu indicators, where CHE is highest for the fifth quintile. The
difference in these results is due to the use of an absolute or a relative poverty line. However, for
the lowest quintile, the proportion of households with catastrophic expenditure is important for
all indicators.
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Figure 5 Costa Rica: Percentage of households with CHE by expenditure quintile
Source: Authors’ calculation from ENIG
By using the (Xu et al., 2003) indicator, the percentage of households with catastrophic
expenditure (at the 30% threshold) is 0.31%. However, for the last quintile of income of
households, it is higher (0.5%) than in the first quintile (0.2%). The frequency of households with
catastrophic expenditure is very low, so the robustness of the results is further reduced as the
analysis is broken down by quintiles or by family composition. Clearly there is a compromise
between specificity of the results or their relevance and the statistical soundness.
Costa Rica has a long standing public policy of increasing the coverage of the health system and
it has enacted measures to protect the poor (people in the first quintile). While it had the non
intended consequence of reducing the importance of OOPS and the possibility of experiencing
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CHE, it has notably moved ahead in both directions. Figure 6 shows CHE by insurance
condition.
Figure 6
Costa Rica: % of CHE at least one member with and without health insurance
Source: Authors´ calculation from ENIG 2004
.
Nonetheless, for the 30% threshold, the percentage of households with catastrophic spending is
zero for some indicators when no member is insured, but it is positive for families with at least
one insured member. This may suggest there is no CHE for the uninsured because they do not
use the system. That features a conceptual problem with the catastrophic health expenditure
analysis. However, this seems not to be the case of Costa Rica. At least 90% of the households
have a family member insured, and 96% of them reported using health services. Yet, despite of
that, 35% of households reported no health expenditure budgets. According to the 2006 ENSA
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only 3% of the population report to need a medical consultation in EBAIS but did not receive
care. From those 3%, around 70% reported that the reason was that he couldn’t get the
appointment. In addition, CHE could be low because National Health System has no co-
payments and health care is a universal right in Costa Rica, so no one is denied first time or
emergency care, even if they are not insured. That is so, even though there will be a due
procedure to try to collect, but clearly the payment is contingent.
Other household feature that makes them experience catastrophic expenditures is having
dependent members within. The reason is those families require special health care and they are
more likely to face higher costs. Figure 7 shows the results.
Figure 7
Costa Rica: Percentage of households with CHE by family composition
Source: Authors´ calculation from ENIG 2004
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Figure 7 shows families with no older adults or children have less CHE and households with
older adults have a relatively larger proportion of catastrophic expenditures, except by WvD1,
WvD2 (K30, k40) Those are also followed by households with children in the household.
However, only two extreme values reach 5% of the relevant income and one of them is under
WvD1.
Figure 8 shows the average composition of out-of-pocket spending for household with and
without CHE.
Figure 8 Composition of pocket spending and spending without catastrophic
Source: author’s calculations out of 2004 ENIG
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Spending on hospitalization care is likely to be a major source of catastrophic expenditures. It is
uncommon, it is unexpected and it usually can not be postponed. However, it does not seem to
be the case of the Costa Rican households. For families with CHE figure 8 shows: i) medical
visits have a greater role in the OOPS, for the (six) indicators, ii) expenditure on hospitalization
(be that public or private and even if it involves surgery) representing 0% of out-of-pocket
expenditures of households with CHE at the 30% threshold. Interestingly, for families without
CHE: i) drugs are a relatively very important component of out-of-pocket spending, ii)
expenditure on therapeutic devices and laboratory tests is a sizeable part of out-of-pocket
spending, and the first item expense is quite regressive. The latter result is also found in the
estimation approach. However, it is important to keep in mind the small sample size of CHE.
So far the discussion has dealt with robustness of the results, with the indicator used, and with the
threshold as well. However, the results can differ according to the capacity to pay definition.
The above results compared the 6 capacity to pay measures: all include various spending levels
minus subsistence income. Table A1.3 presents a summary of those results at the 30% threshold
The results may differ if income instead of expenditures is used or how ability to pay is defined.
Table A1.3 shows the use income instead of expenditure rising the percentage of households with
catastrophic expenditure; it is slightly higher for all cases. For instance, the WvD1 indicator with
LNP (WvD1) for the 30% and 20% thresholds amount to 3.25% and 1.83% of the households,
respectively. Zuniga-Brenes (2006) also found that for households in the lower income decile
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reported expenditures higher than their income, in contrast to what the higher income deciles
families did, for that reason it is possible the CHE are less when using expenditures as CP.
The inclusion or exclusion imputed rental value of owner-occupied housing has an important
effect on the measurement of CHE greater than that coming from the alternative use of income or
expense. Table 3 shows differences in the maximum range of variation are greater the higher the
threshold. For instance, at the 20% threshold, the inclusion of imputed income arising from
housing usage shifts the number of households from 3.25% to 6.07%.
Table 3 Extreme values of the indicator of catastrophic expenditures
CP Expenditure-SE Income- SE Expenditure-SE Income- SE
San Juan de Dios 0.724 0.421 0.296 -0.003 0.061 San Juan de Dios-Carlos Durán -0.355 0.212 0.677 0.112 -0.158 San Juan de Dios-Clorito Picado -0.505 -0.058 0.357 -0.82 -0.234 San Juan de Dios-Marcial Fallas 0.338 0.576 0.168 0.039 -0.036 San Juan de Dios-Moreno Cañas 0.212 0.493 0.154 0.049 0.124 San Juan de Dios-Solón Núñez 0.024 0.356 0.171 0.055 -0.087 San Juan de Dios-Escalante Pradilla 0.277 0,649* 0.193 0.104 0.021 San Juan de Dios-Escalante Pradilla-Ciudad Neily 0.71 0.221 0.141 -0.017 0.04 San Juan de Dios-Escalante Pradilla-Golfito -0.257 0.127 0.184 0.008 -0.1 San Juan de Dios-Tomás Casas 0.768 1,432* 0.006 -0.426 0.058 Constant 4,252*** 4,053*** 3,706*** 2,565*** 0.262
Pseudo R2 0.1418 0.1090 0.060 0.0434 0.0683 Note: * significant at 10%, ** at 5% y *** at 1%. standard errors in parenthesis.
Source: authors´ elaboration using ENIG 2004 and geographic information for health access
For people with no CHE, those at percentile 60 of HFB, being in quintile two to five increase
of HFB, contrary to results for 98 and 99 percentile. These results might suggest that out of
pocket is progressive for people with no CHE. Household size, household with access to
improved sanitary conditions and with children affects positively the HFB (and it becomes
significant). The share of health expenditures not financed with cash become negative, as it is to
be expected because having access to credit will have a negative impact on HFB. The probability
of having insurance decreases HFB, as expected too. The health networks mentioned above are
no longer significant. Instead other health network seem to have a positive impact on HFB such
as i) México-Monseñor Sanabria, ii) México-San Rafael de Alajuela-Luis Carlos Valverde iii)
México-San Rafael de Alajuela-Guápiles/ Los Chiles iv) México/San Juan de Dios-San Rafael de
Alajuela-San Francisco. Therefore, those health networks have an impact on HFB but none of
them on HFB for people with CHE which is a remarkable result.
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Determinants of HFB affect differently HFB conditional on its distribution, showing some degree
of heterogeneity, as it is presented in Table A2.3. They are consistent for 99, 98 percentile and in
some cases still for the 90 percentile. However, as mentioned before differences are evident for
percentile 60 and 80, compared to 99 and 98 percentiles. Those results shows that determinants
of HFB are different for those with out of pocket expenditures from those with catastrophic
expenditures (percentile 98/99).
Table A2.1 and A2.3 also shows the same estimations for different definitions of SE, household
food, and international poverty line. Household characteristics and health coverage are quite
consistent with results mentioned above, for national, international, and endogenous poverty line
definition of SE.
For the case of household food, results are slightly different: It is important to note that for those
with CHE, quintiles do not have a significant impact on HFB. In addition some health networks
will increase the HFB such as: San Juan de Dios alone, San Juan de Dios with: Carlos Durán,
Marcial Fallas, Solon Nunez and Escalante Pradilla.
Table 5 shows quintile regression with waiting lists instead of health coverage network. Results
are consistent with those found above. However, for household with CHE at percentile 99%,
29
being in fifth quintile do not have a significant impact on HFB, but being in quintile two to four
reduce HFB, except when household food is used as subsistence income. With endogenous
poverty line household size reduce HFB, while having children increases HFB. However, those
results are not robust for others measures (Table A2.2 and Table A2.4). Waiting lists do not have
an impact on HFB (for people at percentile 99%). For percentile 98% results are not robust,
when considering household food and international as subsistence income. Waiting lists in
medical procedures increase HFB.
For those with no CHE (percentile 60%), results are consistent with those found for health
services network before. Additional variables, such us having kids, the probability of being
insured, access to improved sanitary conditions and share of the HE financed with no cash seem
to determine HFB. In addition, being in higher quintiles increases HFB.
The most interesting results is that waiting lists in medical procedures seem to increase HFB for
percentile 60% but not for 99%, and waiting list in medical consultations seems to reduce HFB
also for 60% percentile, but not for 99%. Waiting lists in surgeries are not significant. This
could be explained, as mentioned above, by the fact waiting lists in medical consultations are
ophthalmology and orthopedics; therefore people are still willing to stay on line with no
additional outlay. Surgeries represented only 10% of the waiting lists. However, people may not
willing to wait for diagnose once doctors have requested special exams.
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Table 5:
Quintile regression for HFB with health network coverage
Quintile / Endogenous poverty Line 99 98 90 80 60 Urban area 0.019 0.032 0.069 0.094 0.055 Quintile 2 -0,56** -0,445** -0,329*** -0.122 0,55*** Quintile 3 -0,888*** -0,682*** -0,349** -0.179 0,731*** Quintile 4 -0,704*** -0,597*** -0,433*** -0.112 0,976*** Quintile 5 -0.482 -0,487** -0,337** 0.008 1,194*** hhd with children 0,299* -0.134 0.039 0.095 0,14*** hhd with elderly 0,54*** 0,706*** 0,626*** 0,648*** 0,497*** hhd with elderly and children 0.504 -0.224 0.067 0.109 -0.054 hhd size -0,209** -0,139* -0,15** -0.094 0,164*** Prob of having insurance -0.735 -2.036 -0.543 -0.354 -1,162** hhd with electrical energy 0.578 0.514 0.053 -0.103 0.167 hhd with access to improved sanitary conditions -0.078 0.55 0.175 0.327 0,349*** hhd with access to improved water -0.181 -0.121 -0.174 -0.129 -0.048 hhd with access to waste disposal -0.211 -0.264 -0.136 -0,176** -0.065 years of schooling (head) -0.009 0.003 0.003 0.011 0.019 share of household expenses in health not in cash -0.12 0.106 -0.14 -0,282** -0,194*** No of cases in waiting list for surgery 0.021 0.008 0.003 0.016 0.008 No of cases in waiting list for specialized medical consultation -0.019 -0.022 -0,044** -0,034** -0,025** No of cases in waiting list for procedures 0.023 0.018 0,039*** 0,029** 0,023*** Constant 4,47*** 4,789*** 3,361*** 2,189*** 0.32 Pseudo R2 0.107 0.0844 0.04878 0.0302 0.0551 Quintile / National poverty line 99 98 90 80 60 Urban area 0.029 0.09 0.03 0,164** 0.082 Quintile 2 -0,83*** -0,63*** -0.074 -0.083 0,502*** Quintile 3 -1,137*** -0,715*** -0.074 -0.122 0,685*** Quintile 4 -0,977*** -0,678*** -0.193 -0.023 0,921*** Quintile 5 -0,851*** -0,555** -0.056 0.109 1,164*** hhd with children -0.012 -0.13 -0.098 0.085 0,153*** hhd with elderly 0,496** 0,691*** 0,597*** 0,569*** 0,5*** hhd with elderly and children 0.364 -0.088 0.013 0.075 -0.061 hhd size -0.154 -0.018 -0.05 0.015 0,189*** Prob of having insurance -0.705 -2.469 -0.803 -0.19 -1,246** hhd with electrical energy -0.329 -0.289 0.143 0.089 0.171 hhd with access to improved sanitary conditions 0.295 0,712* 0.261 0.286 0,399*** hhd with access to improved water -0.302 -0,542* -0.074 -0.167 -0.06 hhd with access to waste disposal -0.041 -0.077 -0.05 -0.114 -0.073 years of schooling (head) -0.005 0.001 0.005 0.009 0.019 share of household expenses in health not in cash -0.029 -0.069 -0.085 -0.212 -0,219*** No of cases in waiting list for surgery 0.003 -0.009 0.009 0.013 0.009 No of cases in waiting list for especialized medical consultation -0.022 -0,042* -0,036** -0.023 -0,025**
31
Cont/ No of cases in waiting list for procedures 0.023 0.03 0.022 0,023* 0,024*** Constant 5,249*** 6,058*** 2,835*** 1,492*** 0.317 Pseudo R2 0.0943 0.065 0.0364 0.0239 0.0567 Note: * significant at 10%, ** at 5% y *** at 1%. standard errors in parenthesis.
Source: authors´ elaboration using ENIG 2004 and geographic information for health access
Table A2.5 and A2.6 presents a tobit estimations for OOPs and for HFB. In this case they do not
take into account the heterogeneity of the HFB distribution, but results are consistent with those
found for percentile 60%. An interesting difference is waiting list in surgeries increases HFB, a
variable that was not significant before.
7. Discussion of results
Costa Rica is a country shows relatively high OOPS along with small CHE. The two main
components of out-of-pocket spending are doctor visits and drugs, over 80% and lab exams
represent about 7% of total health expenditures. Health expenditures are progressive with minor
exceptions in the bottom of the distribution (depending on the definition of ability to pay).
Medicines and therapeutic devices are regressive for the whole distribution, and lab exams are
progressive. Out-of-pocket hospital staying expenses are minimal and this is a very important
finding. Interestingly, the families that tested positive for catastrophic expenditure (at the 30%
threshold) had no hospital stays, and doctor visits represent their larger spending item. Even
though catastrophic health spending is shown to be small, the results are very sensitive to the
chosen indicator, and the definition of capacity to pay. That may say more about the nature of
32
the expenditure definitions than of the Costa Rican specific results. Whether or not the imputed
income of home ownership is used, it significantly affects the results, much more than the use of
income rather than expense does. The WvD1 (with NPL) indicator brings up the highest
proportion of households with catastrophic expenses. This is the result of viewing all poor
people as having catastrophic expenditures, and of the national poverty line being much higher
than the international or endogenous ones, and therefore the result is magnified.
The analysis by socioeconomic is less robust, when it is done in one dimension (i.e CHE are
analyzed by insurance condition, household composition, quintile, etc). Households without any
member insured do not have catastrophic expenditures for some indicators, and for the others the
share of households with CHE is less for households without any member insured. This may
suggest that families do not have CHE, because they do not use health services, but as it was
mentioned above 96% reported to use them. The same occurs when CHE is analyzed by
quintile. This analysis gives already important results as households with elderly members have
higher CHE, however it is important to take into account the correlation between variables. For
example, when other control variables are included in the regression analysis being in the fifth
quintile increases HFB for those with no CHE.
In addition, the estimation procedure shows that medical procedures ( which include ultrasound
and other exams) increase HFC but it does not do it for households with CHE. This may be due
to not being so important in the OOPS share (7%), and because they are very progressive. It is
33
also important to study health networks that are affecting in a significant way HFC, for example
it would important to study if population that receive care in San Juan de Dios-Tomas de las
Casas, and San Juan de Dios-Escalante Pradilla are relatively poor than those in other geographic
areas or whether they have larger health expenses due to health system characteristics.
Geographic variables are capturing the combined effect of having less capacity to pay or higher
OOPS, but it would be very interesting to disentangle those effects.
Finally is important to understand that having low CHE is the result of the Costa Rican health
system design (Muiser and Vargas, 2010), very high insurance coverage, no co-payment in health
care services, and a complementary private health care system. Challenges such as the population
ageing and the epidemiological transition are present and will play a larger role, as it does in
OECD countries, and that may increase health care costs questioning the financial sustainability
of the Costa Rican health care system.
8. Concluding remarks
The purpose of this chapter is to explain the paradox of high out-of-pocket health expenditures
while catastrophic health expenditures are very small. Enough evidence was provided on the
composition of out-of-pocket expenditures and their progressivity, the financial burden of-out-
pocket expenditures, the catastrophic costs and the impoverishing costs for different measures of
ability to pay, rates and thresholds. Besides, the risk factors that may explain OOPS and HFB,
including socioeconomic variables were successfully tested. It was so, also for the characteristics
34
of the health system, which involved mixing further information from the survey with
geographical access to the network of services and the waiting times. There was a novel feature
of the study as that has never been done before for Costa Rican National Health Systems cases.
Furthermore, in order to explain the risk factors that account for the financial burden of pocket
spending, but not necessarily those of the high catastrophic expenditures, a quintile regression to
determine the effect of variables in different parts of the distribution was estimated. That was
again a novel feature in Costa Rican health studies.
From the standpoint of public policies, the whereabouts and interactions of these networks of
services that were significant in explaining the catastrophic expenditure should be further
developed for future research. It could be done more by case studies than from a general
approach.
Finally, the quality of databases is a pending issue. The household expenditure survey was
exploited to their highest yield. A welcome alternative will be quality-of-life type surveys, which
combines information on health expenditures, health status, health system utilization, and health
system characteristics, such as access, quality, waiting lists, etc. If those surveys becomes
available, it will take the risk factors analysis that explain out-of-pocket costs and catastrophic
expenses to a higher plateau.
35
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1
Appendix A1
Table A1.1
Summary Statistics of main variables
Variable Mean Std. Dev. Variable Mean
Std. Dev.
Households in rural areas 37.91% 0.03 National poverty line at hhd level 57,857.17 552.39
Composition of households by age International pov line 32,065.36 285.56
With children 24.95% 0.01 Endogenous pov line 58,307.73 306.98
With elderly 16.41% 0.01 Different indicators of Capacity to pay
(CP) With children and elderly 1.74% 0.00 Food expenditures 397,430.70 19222.66 With children and elderly 56.90% 0.01 National pov line 391,019.40 19854.49
Household size International pov line 416,811.20 19894.99
2 members or less 25.91% Endogenous pov line 390,568.80 19887.36
3-4 members 44.59% Health financial burden of Oops
5 members or more 29.50%
0.01
Food expenditures 2.56% 0 % hhd with at least one person insured 90.20% 0.01 National pov line 3.34% 0.01 Total expenditures 448,876.60 19846.04 Internacional pov line 2.63% 0 Total Oops expenditures 11,430.48 705.57 Endogenous pov line 3.60% 0.03
Food expenditures 51,445.85 1069.23 No of households 4231
Table A1.2
Kawkani indices for OOPS
Capacity to pay with ES Food Nat Pov Line Int Pov Line Endogenous Pov
0,167 -0,103 0,053 0,514 0,578 0,171 0,089 0,143 -0,289 -0,329 House with access to electrical energy [0.183] [0.542] [0.361] [0.439] [0.521] [0.198] [0.401] [0.315] [0.675] [0.763]
0,349 0,327 0,175 0,55 -0,078 0,399 0,286 0,261 0,712 0,295 House with access to improved sanitary cond [0.119]*** [0.304] [0.219] [0.369] [0.395] [0.093]*** [0.281] [0.183] [0.414]* [0.474]
-0,048 -0,129 -0,174 -0,121 -0,181 -0,06 -0,167 -0,074 -0,542 -0,302 House with access to improved water [0.141] [0.173] [0.145] [0.197] [0.214] [0.108] [0.138] [0.137] [0.295]* [0.276]
-0,065 -0,176 -0,136 -0,264 -0,211 -0,073 -0,114 -0,05 -0,077 -0,041 House with access to waste disposal [0.086] [0.089]** [0.123] [0.167] [0.180] [0.077] [0.087] [0.109] [0.160] [0.191]
0,019 0,011 0,003 0,003 -0,009 0,019 0,009 0,005 0,001 -0,005 Years of schooling head [0.027] [0.026] [0.024] [0.036] [0.061] [0.032] [0.025] [0.027] [0.025] [0.047]
10
Continuation Endogenous poverty line National poverty line Quintile 60 80 90 98 99 60 80 90 98 99
Share of HE that is not -0.194 -0.282 -0.14 0.106 -0.12 -0.219 -0.212 -0.085 -0.069 -0.029 financed with cash [0.073]*** [0.143]** [0.128] [0.294] [0.286] [0.079]*** [0.160] [0.156] [0.263] [0.259]
0,008 0,016 0,003 0,008 0,021 0,009 0,013 0,009 -0,009 0,003 No of cases in waiting list in surgery [0.008] [0.011] [0.013] [0.015] [0.017] [0.006] [0.010] [0.008] [0.017] [0.019]
-0,025 -0,034 -0,044 -0,022 -0,019 -0,025 -0,023 -0,036 -0,042 -0,022 No of cases in waiting list in medical consultations [0.010]** [0.017]** [0.018]** [0.027] [0.037] [0.011]** [0.018] [0.018]** [0.025]* [0.031]
0,023 0,029 0,039 0,018 0,023 0,024 0,023 0,022 0,03 0,023 No of cases in waiting list in procedures [0.007]*** [0.012]** [0.014]*** [0.022] [0.033] [0.008]*** [0.013]* [0.014] [0.021] [0.030]
International poverty line Food poverty line Quintile 60 80 90 98 99 60 80 90 98 99
-0,182 -0,252 -0,142 -0,117 -0,194 -0,164 -0,223 -0,203 -0,03 -0,074 Share of health expenditures financed with no cash [0.069]*** [0.147]* [0.153] [0.189] [0.246] [0.059]*** [0.124]* [0.154] [0.222] [0.270]
0,008 0,014 0,001 -0,008 0,009 0,008 0,012 0,013 0,011 0,004 No of cases in waiting list for surgery [0.006] [0.009] [0.012] [0.017] [0.020] [0.006] [0.010] [0.011] [0.014] [0.017]
-0,024 -0,026 -0,047 -0,045 -0,033 -0,019 -0,033 -0,049 -0,056 -0,036 No of cases in waiting list for medical consultations [0.011]** [0.016]* [0.017]*** [0.024]* [0.023] [0.010]* [0.015]** [0.016]*** [0.020]*** [0.023]
0,021 0,024 0,035 0,033 0,04 0,019 0,03 0,035 0,057 0,037 No of cases in waiting list for procedures [0.008]*** [0.011]** [0.014]** [0.020]* [0.022]* [0.006]*** [0.011]*** [0.014]** [0.017]*** [0.017]**
Pseudo R2 0.0710 0.0354 0.0393 0.0488 0.0689 0.0795 0.0514 0.0586 0.0652 0.0688 Note: * significant at 10%, ** at 5% y *** at 1%. Standard errors in parenthesis.
Source: own authors´ calculation with ENIG 2004 and geographic information
17
Table A2.5 Tobit for Oops and HFB to different measures of CP: using waiting lists
Health Financial Burden Oops Food National International Endogenous
0,243 0,066 0,089 0,069 0,068 Urban [0.199] [0.052] [0.053]* [0.051] [0.055] 2,924 0,479 0,32 0,373 0,306 Quintile 2 [0.365]*** [0.085]*** [0.087]*** [0.082]*** [0.092]*** 4,402 0,702 0,482 0,559 0,47 Quintile 3 [0.431]*** [0.095]*** [0.099]*** [0.097]*** [0.108]*** 6,339 0,976 0,751 0,838 0,737 Quintile 4 [0.468]*** [0.108]*** [0.113]*** [0.106]*** [0.122]*** 9,199 1,324 1,108 1,2 1,093 Quintile 5 [0.450]*** [0.110]*** [0.115]*** [0.109]*** [0.126]*** 1,162 0,188 0,214 0,208 0,24 Hhd with children [0.221]*** [0.042]*** [0.051]*** [0.042]*** [0.052]*** 0,949 0,419 0,414 0,39 0,447 Hhd with elderly [0.390]** [0.093]*** [0.107]*** [0.096]*** [0.107]*** -0,712 -0,077 -0,088 -0,091 -0,074 Hhd with children and elderly [0.921] [0.188] [0.208] [0.188] [0.206] 1,4 0,147 0,165 0,144 0,128 Household size [0.206]*** [0.050]*** [0.053]*** [0.049]*** [0.059]** -1,641 -0,604 -0,639 -0,46 -0,719 Probability of having insurance [3.039] [0.799] [0.873] [0.832] [0.962] 0,711 0,237 0,153 0,202 0,229 House with electrical energy [1.123] [0.250] [0.297] [0.271] [0.310] 1,837 0,417 0,425 0,339 0,397 House with access to improved
sanitary conditions [0.683]*** [0.166]** [0.189]** [0.183]* [0.202]** 0,007 -0,087 -0,109 -0,074 -0,078 House with access to improved
water [0.500] [0.108] [0.125] [0.109] [0.128] -0,286 -0,11 -0,096 -0,105 -0,124 House with access to waste disposal [0.303] [0.067] [0.076] [0.071] [0.079] 0,053 0,009 0,011 0,01 0,012 Years of schooling of head [0.048] [0.011] [0.011] [0.011] [0.012] -0,998 -0,227 -0,212 -0,23 -0,237 Share of HE that is financed with no
case [0.346]*** [0.066]*** [0.079]*** [0.068]*** [0.076]*** 0,069 0,014 0,016 0,013 0,018 Number of cases in waiting list in
surgery [0.024]*** [0.005]*** [0.006]*** [0.006]** [0.006]*** -0,097 -0,026 -0,025 -0,025 -0,027 Number of cases in waiting list in
medical consultations [0.038]** [0.009]*** [0.009]*** [0.009]*** [0.009]*** 0,131 0,032 0,031 0,031 0,034 Number of cases in waiting list in
Guápiles/Los Chiles [0.251]* [0.067] [0.068] [0.067] [0.071] 0,162 0,178 0,114 0,1 0,09 México/San Juan de Dios-San
Rafael Alajuela-San Francisco Asís [0.381] [0.087]** [0.096] [0.090] [0.100] 0,281 0,153 0,128 0,137 0,132 México/San Juan de Dios-Mons.
Sanabria [0.129]** [0.030]*** [0.032]*** [0.030]*** [0.033]*** 0,591 0,303 0,342 0,316 0,342 San Juan de Dios [0.175]*** [0.040]*** [0.044]*** [0.042]*** [0.045]*** 5,024 1,12 1,365 1,107 1,14 San Juan de Dios-Carlos Durán [0.312]*** [0.072]*** [0.079]*** [0.074]*** [0.083]*** 0,913 0,312 0,354 0,317 0,397 San Juan de Dios-Clorito Picado [0.172]*** [0.042]*** [0.044]*** [0.041]*** [0.045]*** 0,198 0,087 0,092 0,11 0,124 San Juan de Dios-Marcial Fallas [0.362] [0.083] [0.091] [0.085] [0.093] 0,206 0,001 -0,001 0,02 -0,004 San Juan de Dios-Moreno Cañas [0.051]*** [0.011] [0.011] [0.011]* [0.012] -2,611 -0,423 -0,43 -0,388 -0,424 San Juan de Dios-Solón Núñez [0.082]*** [0.022]*** [0.025]*** [0.022]*** [0.025]***
20
Continuation
Poverty Line Oops Food National International Endogenous
0,909 0,01 0,016 0,028 0,012 San Juan de Dios-Escalante Pradilla [0.075]*** [0.017] [0.018] [0.017]* [0.019] -1,067 -0,127 -0,136 -0,124 -0,146 San Juan de Dios-Escalante Pradilla-
Ciudad Neily [0.070]*** [0.014]*** [0.015]*** [0.014]*** [0.015]*** 0,221 0,078 0,083 0,09 0,079 San Juan de Dios-Escalante Pradilla-
Golfito [0.067]*** [0.016]*** [0.017]*** [0.016]*** [0.018]*** -1,543 -0,215 -0,207 -0,186 -0,203 San Juan de Dios-Tomás Casas [0.078]*** [0.016]*** [0.018]*** [0.016]*** [0.018]*** 0,006 0,1 0,059 0,104 0,063 House with electrical energy [0.232] [0.051]** [0.056] [0.052]** [0.058] -0,245 -0,027 0,049 -0,018 0,004 House with access to improved
sanitation [0.141]* [0.036] [0.038] [0.035] [0.039] -0,258 0 -0,1 -0,065 -0,089 House with access to improved
water [0.391] [0.088] [0.101] [0.090] [0.106] 0,638 0,094 0,194 0,094 0,176 House with access to waste disposal [0.368]* [0.090] [0.096]** [0.090] [0.101]* -1,267 -0,184 -0,192 -0,174 -0,202 Years of schooling of head [0.063]*** [0.014]*** [0.016]*** [0.015]*** [0.017]*** 1,753 0,382 0,507 0,527 0,567 Share of health expenditures that is
financed with no cash [0.072]*** [0.077]*** [0.073]*** [0.082]*** -3,776 -0,449 -0,151 -0,391 -0,048 constant [2.114]* [0.495] [0.558] [0.505] [0.607]
N 4231 4231 4231 4231 4231 Pseudo R-2 0,06 0,05 0,04 0,04 0,03 Log of pseudolikelihood -9793,15 -5501,26 -5729,9 -5528,93 -5812,23 Note: * significant at 10%, ** 5% and *** 1%. Standard errors in parenthesis.
Source: authors´calculation with ENIG 2004 and geographic information