Carol Kuplicki, MPH Community Service Council of Greater Tulsa April, 2004

Infant MortalityLinked Birth-Infant Death Data

Set

Tulsa County, Oklahoma1991-2000

Preliminary Findings

Carol Kuplicki, MPHCommunity Service Council of Greater

TulsaApril, 2004

Data Source

Linked Birth-Infant Death Certificates

Oklahoma State Department of Health

Tulsa City-County Health Department

Criteria for Inclusion in this Study

Infants – Live births to less than 1 year old

Tulsa County Residents – at birth and death

Born in Tulsa County Died in Tulsa County Infant deaths from 1991 through

2000

Number of Infant Deaths

5158

71

62

57 5749 51 53

67

0

10

20

30

40

50

60

70

80

Nu

mb

er

of

Infa

nt

De

ath

s

1991 1992 1993 1994 1995 1996 1997 1998 1999 2000

Year of Death

Number of Infant Deaths Linked Birth/Infant Death Data Set

Tulsa County, 1991-2000 N=576

Infant Deaths by Cause

ICD-9 Cause of Death798 Sudden death, cause unknown765 Disorders relating to short gestation and unspecified

LBW779 Other and ill-defined conditions originating in the

perinatal period

746 Other congenital anomalies of heart770 Other respiratory conditions of fetus and newborn771 Infections specific to the perinatal period

799 Other ill-defined and unknown causes of morbidity and mortality

748 Congenital anomalies of respiratory system758 Chromosomal anomalies

753 Congenital anomalies of urinary system

762 Fetus/newborn affected by other complications of placenta, cord, membranes

All Other Causes

TOTAL DEATHS

Number of

Deaths786756

292927

262515

1414

196576

Percent of

Deaths13.5%11.6%

9.7%

5.0%5.0%4.7%

4.5%4.3%2.6%

2.4%2.4%

34.0%100%

Infant Deaths by Cause

ICD-9 Cause of Death Congenital Anomalies746 Other congenital anomalies of heart748 Congenital anomalies of respiratory system758 Chromosomal anomalies753 Congenital anomalies of urinary system

798 Sudden death, cause unknown765 Disorders relating to short gestation and unspecified

LBW779 Other and ill-defined conditions originating in the

perinatal period

770 Other respiratory conditions of fetus and newborn771 Infections specific to the perinatal period

799 Other ill-defined and unknown causes of morbidity and mortality

762 Fetus/newborn affected by other complications of placenta, cord,

membranes

All Other Causes

TOTAL DEATHS

Number of

Deaths8329251514

78675629272614

196576

Percent of

Deaths

14.0%5.0%4.3%2.6%2.4%

13.5%11.6%

9.7%5.0%4.7%4.5%2.4%

34.0%100%

Gender of InfantsGender of Infants

Linked Birth/Infant Death Data SetTulsa County, 1991-2000

N=576

Male313 (54.3%) Female

263 (45.7%)

Infant Deaths by Race

Infant Deaths by Race Linked Birth/Infant Death Data Set

Tulsa County, 1991- 2000 N=576

White 381( 66%)

Black 164 (29%)

Native American 23 (4%)

Other 8 (1%)

Neonatal and Post Neonatal Deaths

Number of Neonatal and Post Neonatal Deaths Linked Birth/Infant Death Data Set

Tulsa County, 1991-2000N=576

200

376

0

50

100

150

200

250

300

350

400

Post Neonatal Deaths Neonatal

Nu

mb

er

of

De

ath

s

Neonatal and Post Neonatal Deaths

Number of Neonatal and Post Neonatal DeathsLinked Birth/Infant Death Data Set

Tulsa County, 1991-2000

Post Neonatal200 (34.7%)28-364 Days

Post Neonatal200 (34.7%)

Neonatal376 (65.3%)

<28 Days

1 Day to <28 Days160 (27.8%)

1 Hr. to <1Day143 (24.8%)

< 1 Hour 73 (12.7%)

0

100

200

300

400

500

600

Infant Deaths

Num

ber o

f Inf

ant D

eath

s

Infant Deaths by Birth Weight

Birth Weight Linked Birth/Infant Deaths Tulsa County, 1991-2000

N=570

<1,500 gram s286 (50.2%)

1,500-2,499 gram s84 (14.7%)

2,500-3,999 gram s182 (31.9%)

4,000+ gram s18 (3.2%)

Infant Deaths by Birth Weight & Year of Death

Birth Weight by YearLinked Birth/Infant DeathsTulsa County 1991-2000

0

5

10

15

20

25

30

35

40

1991 1992 1993 1994 1995 1996 1997 1998 1999 2000

Year of Death

Num

ber

of In

fant

Dea

ths

<1500 grams

1500-2499 grams

2500-3999 grams

4000+ grams

27

5

18

<5

28

6

19

<5

35

7

25

<5

27

8

22

<5

31

10

15

<5

31

10

14

<5

29

6

12

<5

23

9

18

<5

26

5

20

<5

29

18

19

<5

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

Per

cent

of D

eath

s

1991 1992 1993 1994 1995 1996 1997 1998 1999 2000

Year of Death

Birth Weight by YearLinked Birth/Infant Deaths

Tulsa County 1991-2000

<1500 grams 1500-2499 grams 2500-3999 grams 4000+ grams

Infant Deaths by Gestational Age

Infant Deaths by Gestational AgeLinked Birth/Infant DeathTulsa County 1991-2000

N=557

145 (26.0%)

218 (39.1%)

176 (31.6)%

18 (3.2%)

0

50

100

150

200

250

<24 24-36 37-40 >40

Gestational Age (Weeks)

Nu

mb

er

of

De

ath

s

Infant Deaths by Gestational AgeLinked Birth/Infant Death Data Set

Tulsa County 1991-2000N=557

0

5

10

15

20

25

30

35

1991 1992 1993 1994 1995 1996 1997 1998 1999 2000

Year of Death

Num

ber

of D

eath

s

<24 weeks 24-36 weeks 37-40 weeks >40 weeks

Infant Deaths by Age of Mother

Infant Deaths by Age of MotherBirth/Infant Death Data Set

Tulsa County 1991-2000N=575

107

179

116106

56

7<50

20

40

60

80

100

120

140

160

180

200

<15 15-19 20-24 25-29 30-34 35-39 40+

Age of Mother

Nu

mb

er

of

Infa

nt

De

ath

s

Infant Deaths by Pregnancy Weight Gain

Weight Gained During Pregnancy Birth/Infant Death Data Set

Tulsa County 1991-2000 N=528

85

138 135

104

45

10 83

0

20

40

60

80

100

120

140

160

0-9 10-19 20-29 30-39 40-49 50-59 60-69 70+

Weight Gained in Pounds

Nu

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of

Infa

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De

ath

s