1 Health Surveys User Group July 20, 2006 10:30-2:30.

1

Health Surveys User Group

July 20, 2006

10:30-2:30

2

2006 Texas BRFSS

3

2006 Texas BRFSS

Sampling Design

Projected # or Respondents

Cooperation, Response, & Refusal Rates

4

A.A. Oversamples in Houston, Fort Worth, and Dallas

5

Total Per Month Total Per Month

Total 6480 540 2590 518

Houston-Baytown-Sugarland MSA AA Oversample 300 25 105 21

Houston-Baytown-Sugarland Remaining MSA 240 20 99 19.8

Dallas-Plano-Irving PMSA AA Oversample 300 25 104 20.8

Dallas-Plano-Irving Remaining PMSA 240 20 97 19.4

Ft Worth-Arlington PMSA AA Oversample 300 25 121 24.2

Ft Worth-Arlington Remaining PMSA 240 20 117 23.4

San Antonio MSA 540 45 214 42.8

Austin-Round Rock MSA 540 45 217 43.4

El Paso MSA 540 45 213 42.6

Lubbock MSA (February - June, target was 30) 480 40 159 31.8

Gregg, Smith and Harrison Counties 360 30 164 32.8

Remaining Metro Counties 1200 100 471 94.2

Remaining Counties 1200 100 509 101.8

Current NumberProjected

Projected vs. Actual Number of Interviews2006 Texas BRFSS (February - May)

6

Cooperation Rate2006 Texas BRFSS

73.5

67.2

72.6

65.5

76.171.8

75.172.7

76.273.8 73.9 74.5 74.6 74.2

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

%Data Collected February - May 2006

7

Overall Response Rate2006 Texas BRFSS

26.6

19.1

23.6

21.3 21.7 21.9

25.9

23.7

25.8

29.2 29.327.5

29.531.3

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

%Data Collected February - May 2006

8

CASRO Response Rate2006 Texas BRFSS

43.9

36.4

41.739.4

42.540.3

44.6

40.7

46.9

42.6

47.2

42.6

45.547.4

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

%Data Collected February - May 2006

9

Refusal Rate2006 Texas BRFSS

13.5 13.8 14.1

17.9

9.5

14.5

13.314.3

12.3

10.6

15.0

13.613.0

14.2

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

%Data Collected February - May 2006

10

2007 Texas BRFSS Planning

11

2007 BRFSS Planning

Sampling Design

Timeline

12

Ways to Enhance the Current System

Data quality Reduce survey length Increase response rates

to reduce potential bias

Sample sizes for specific demographic groups (e.g., race/ethnicity)

Which area is more important to stakeholders?

13

Section # of Respondents %

After Demographics Section 30 0.5

After Core 354 5.4

Module 20 428 6.6

Texas 01 576 8.8

Number of Missing Respondents (excluding DK/NS and Refusals)

2005 Texas BRFSS

14

2005 Texas BRFSS Questionnaire

Health StatusHealthy DaysHealth Care AccessExerciseDiabetesDiabetes ModuleHypertension AwarenessCholesterol AwarenessCardiovascular Disease PrevalenceAsthmaImmunizationTobacco UseAlcohol ConsumptionDemographicsVeteran’s StatusDisabilityArthritis BurdenFruits & Vegetables

Physical ActivityHIV/AIDSEmotional Support & Life SatisfactionChild SelectionChildhood AsthmaIndoor Air QualityHome EnvironmentVisual Impairment & Access to Eye CareCardiovascular HealthHeart Attack & StrokeAdult Asthma HistorySmoking CessationSecondhand Smoke PolicyAccess to CareEpilepsyFolic AcidHIV/STDHurricane Impact Assessment

15

2005 2006 2007Observed Target Target?

Houston 1008 540 540

Dallas 689 540 540

Fort Worth 571 540 540

San Antonio 577 540 540

Austin-Round Rock 563 540 540

El Paso 741 540 540

Lubbock MSA 0 480 0

Gregg/Smith/Harrison Co. 0 360 0

Remaining Metros 1158 1200 1200

Remaining Counties 1205 1200 2500

Region 1/2/3 exc Metros 362 500

Region 4/5 exc Metros 394 500

Region 7 exc Metros 148 500

Region 9/10 exc Metros 98 500

Region 6/8/11 exc Metros 204 500

Total 6512 6480 6940

Texas BRFSSSamples Sizes

16

17

A.A. Oversamples in Houston, Fort Worth, and Dallas

18

2007 Planning Timeline

Early Fall 2006: Four Pretest Questions

September 22nd: Due Date for 2007 Proposals

October 12th: Next HSUG Meeting?

~October 15th: Sampling Plan Due to CDC

Mid-November have finalized questionnaire

December – Invoices sent out

19

2006 Asthma Call Back Survey

20

Response Rates (February-May)

% Missing at end of survey: 4.3%

Agreement Rate: 66.9%

Completion Rate: 53.3%

Response Rate (AR x CR): 35.7%

21

2005 Texas BRFSS

(Extra Slides)

22

Cooperation Rate2005 Texas BRFSS

72.871.3

73.576.7

71.9

77.0

72.3 72.5 71.1

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

55.0

60.0

65.0

70.0

75.0

80.0

85.0

Total HoustonMSA

DallasPMSA

Ft. WorthPMSA

San AntonioMSA

Austin-Round Rock

MSA

El PasoMSA

RemainingMetro Co.

RemainingCo.

%

23

Overall Response Rate2005 Texas BRFSS

28.8

23.724.8

28.6

26.6

30.3

33.3

31.5

33.1

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

Total HoustonMSA

DallasPMSA

Ft. WorthPMSA

San AntonioMSA

Austin-Round Rock

MSA

El PasoMSA

RemainingMetro Co.

RemainingCo.

%

24

CASRO Response Rate2005 Texas BRFSS

45.0

41.3

44.746.1

42.7

48.3

43.7

46.347.7

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

55.0

Total HoustonMSA

DallasPMSA

Ft. WorthPMSA

San AntonioMSA

Austin-Round Rock

MSA

El PasoMSA

RemainingMetro Co.

RemainingCo.

%

25

Refusal Rate2005 Texas BRFSS

14.213.7

13.212.5

14.8

13.4

11.6

14.7

17.6

0.0

2.0

4.0

6.0

8.0

10.0

12.0

14.0

16.0

18.0

20.0

Total HoustonMSA

DallasPMSA

Ft. WorthPMSA

San AntonioMSA

Austin-Round Rock

MSA

El PasoMSA

RemainingMetro Co.

RemainingCo.

%

26

Screening Rate2005 Texas BRFSS

62.7

57.1 56.9

61.7 60.563.8 63.7

66.668.7

0.0

10.0

20.0

30.0

40.0

50.0

60.0

70.0

80.0

Total HoustonMSA

DallasPMSA

Ft. WorthPMSA

San AntonioMSA

Austin-Round Rock

MSA

El PasoMSA

RemainingMetro Co.

RemainingCo.

%

27

CASRO Response Rate (CDC Calculated)Texas 1996-2005

52.8

45.7

41.2

36.233.5

39.7

46.2

41.243.3 44.0

0.0

5.0

10.0

15.0

20.0

25.0

30.0

35.0

40.0

45.0

50.0

55.0

60.0

1996 1997 1998 1999 2000 2001 2002 2003 2004 2005

Survey Year

%