Vietnam Population and AIDS Indicator Survey 2005 ... - Measure DHS

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Table A.5 Sample allocation of expected completed women and men interviews according to study domains and by type of residence, VPAIS 2005 –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Allocation of completed Allocation of completed women interviews (15-49) meninterviews (15-49) Study –––––––––––––––––––––––––––– –––––––––––––––––––––––––––––– domain Urban Rural Total Urban Rural Total –––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– North Region 1,234 2,482 3,716 1,116 2,243 3,359 Central Region 320 1,162 1,482 290 1,050 1,340 South Region 840 1,194 2,034 758 1,079 1,837 Total 2,394 4,838 7,232 2,164 4,372 6,536 Ha Noi 370 220 590 335 199 534 Ho Chi Minh City 494 63 557 446 57 503 Hai Phong 370 628 998 335 568 903 Quang Ninh 296 315 611 268 284 552 The above sample allocations are calculated based on facts obtained from Vietnam Demographic and Health Survey 2002 (VDHS 2002) and the 1999 PHC: there are 1.18 women aged 15-49 and 1.10 men aged 15-49 per household; household response rate was 97 percent; woman individual response rate was 98 percent; men individual response rate was assumed to be 95 percent since men were not included in the VDHS 2002. For HIV testing in the province of Hai Phong, the sample allocation of expected number of completed HIV tests for men, women and for both men and women, and the expected precision of prevalence estimates under various assumptions of HIV prevalence levels are shown in table A.6 below. The response rate for HIV testing was assumed to be 90 percent for men and women; no other previous survey results were available at the time in Vietnam on which to base expected response rates for testing. Table A.6 Sample allocation with expected precision of HIV prevalence estimates assuming various prevalence levels in Hai Phong province, VPAIS, 2005 ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Women Men Total ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– NUMBER OF INDIVIDUAL INTERVIEWS FOR HIV TESTING ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Respondents Expected number eligible 998 903 1,901 Expected number tested 900 810 1,710 ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– 98% CONFIDENCE INTERVAL FOR HIV PREVALENCE ESTIMATE ––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––– Assumed prevalence p = 1% (0.2%, 1.8%) (0.1%, 1.9%) (0.4%, 1.6%) p = 1.5% (0.5%, 2.5%) (0.5%, 2.6%) (0.8%, 2.2%) p = 2.0% (0.9%, 3.2%) (0.8%, 3.2%) (1.2%, 2.9%) p = 2.5% (1.2%, 3.8%) (1.1%, 3.9%) (1.6%, 3.5%) A.4 SAMPLING PROBABILITIES Sampling probabilities were calculated separately for each sampling stage and for each cluster. We use the following notations: P 0hi P 1hi : P 2hi : sampling probability in the PCS sample of the i th cluster in stratum h first-stage sampling probability of the i th cluster in stratum h from the PCS sample second-stage sampling probability within the i th cluster (households) 98 | Appendix A
Let a h be the number of clusters selected in stratum h, M hi the number of households according to the sampling frame in the i th cluster, and ∑ M hi the total number of households in the stratum. The probability of selecting the i th cluster in the VPAIS sample is calculated as follows: ah M ∑ M Let b hi be the proportion of households in the selected segment compared to the total number of households in the EA i in stratum h if the EA is segmented, otherwiseb hi = 1. Then the probability of selecting cluster i in the sample is: a hi hi M M h hi P 1hi= × ∑ hi Let L hi be the number of households listed in the household listing operation in cluster i in stratum h, let g hi be the number of households selected in the cluster. The second stage selection probability for each household in the cluster is calculated as follows: b hi P = 2 hi g L hi hi The overall selection probability of each household in cluster i of stratum h is therefore the production of the selection probabilities: Phi = P0 hi × P1 hi × P2 hi Because of the non-proportional allocation of the sample to the different 7 reporting domains, sampling weights are required for any analysis using VPAIS 2005 data to ensure the actual representativity of the sample at the national level. The sampling weight for each household in cluster i of stratum h is the inverse of its selection probability: W = 1/ hi P hi Appendix A | 99
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VIETNAM POPULATION AND AIDS INDICAT
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CONTENTS TABLES AND FIGURES .......
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CHAPTER 8 CHILDREN AT RISK 8.1 Key
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CHAPTER 5 ATTITUDES RELATING TO HIV
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PREFACE The 2005 Vietnam Population
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SUMMARY OF INDICATORS Program area
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Map of Administrative Units of Viet
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international commitments to the pr
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model AIDS Indicator Survey (AIS) q
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All team members assigned to Hai Ph
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HOUSEHOLD POPULATION AND HOUSING CH
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of tile or cement (96 percent), whi
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asset information was collected in
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Figure 2.1 Age Pyramid, Vietnam 200
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Table 2.7 Educational attainment of
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Table 2.8 Household possession of m
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Table 2.10 Use of mosquito nets by
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Table 3.1 Background characteristic
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Table 3.2 Educational attainment of
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Table 3.3 Exposure to mass media Pe
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Table 3.4.2 Employment status: men
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Table 3.6 Age at first marriage Per
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Figure 3.1 Percent Distribution of
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General awareness of AIDS is high a
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Knowledge of all three means of avo
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Table 4.3.2 Beliefs about AIDS: men
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Table 4.4 Knowledge of prevention o
Page 56 and 57: and men) who reported that the HIV
Page 58 and 59: 5.4 ATTITUDES TOWARDS NEGOTIATING S
Page 60 and 61: Table 5.3 Adult support of educatio
Page 62 and 63: HIV/AIDS-RELATED BEHAVIOR 6 6.1 KEY
Page 64 and 65: Table 6.1.1 Recent sexual activity:
Page 66 and 67: 6.4 MULTIPLE SEXUAL PARTNERS Among
Page 68 and 69: Table 6.2.2 Multiple sexual partner
Page 70 and 71: 6.7 VOLUNTARY HIV COUNSELING AND TE
Page 72 and 73: Women who become pregnant have an o
Page 74 and 75: Table 6.6 Self-reported prevalence
Page 76 and 77: Table 6.7 Prevalence of injections
Page 78 and 79: Table 7.1 Comprehensive knowledge a
Page 80 and 81: Table 7.2 Age at first sex among yo
Page 82 and 83: Table 7.3 Condom use at first sexua
Page 84 and 85: Practically all never-married women
Page 86 and 87: 7.8 ALCOHOL USE DURING SEX Research
Page 88 and 89: Table 7.7 Recent HIV tests among yo
Page 90 and 91: Table 8.1 Children’s living arran
Page 92 and 93: Table 8.3 also shows the same infor
Page 94 and 95: Table 8.5 Succession planning Perce
Page 96 and 97: HIV PREVALENCE IN HAI PHONG PROVINC
Page 98 and 99: Table 9.2 Coverage of HIV testing b
Page 100 and 101: 9.6 HIV PREVALENCE BY BACKGROUND CH
Page 102 and 103: Rutstein, S., K. Johnson, and D. Gw
Page 104 and 105: A.2 SAMPLING FRAME The sampling fra
Page 108 and 109: Table A.7 Total number of EAs and n
Page 110 and 111: Table A.9 Population distribution a
Page 112 and 113: Table A.11 Sample implementation Pe
Page 114 and 115: Table A.14 Coverage of HIV testing
Page 116 and 117: ESTIMATES OF SAMPLING ERRORS Append
Page 118 and 119: Table B.1 List of selected variable
Page 120 and 121: Table B.3 Sampling errors for Urban
Page 122 and 123: Table B.5 Sampling errors for North
Page 124 and 125: Table B.7 Sampling errors for South
Page 126 and 127: Table B.9 Sampling errors for Ho Ch
Page 128 and 129: Table B.11 Sampling errors for Quan
Page 130 and 131: Team 4: Responsible for fieldwork i
Page 132 and 133: QUESTIONNAIRES Appendix D Appendix
Page 134 and 135: A. household schedule Now we would
Page 136 and 137: no Questions and filters Coding cat
Page 141 and 142: Department of population and labour
Page 145 and 146: Section2. reproduction no Questions
Page 147 and 148: Section 3. marriage and sexual acti
Page 151 and 152: Last sexual partner 334 check 103:
Page 153 and 154: Section 4. hiv/aids no Questions an
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no Questions and filters Coding cat
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Questions and filters Coding catego
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Comments about Respondent : Intervi
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