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Table 3 ANC sentinel surveillance 2005: HIV prevalence estimates

From: Population and antenatal-based HIV prevalence estimates in a high contracepting female population in rural South Africa

   Sample1 (n) Diagnosed with HIV infection 95% CIs Odds ratio 95% CIs
    n %      
HIV Prevalence 2 1111 419 37.7 34.9 40.6 - - -
Antenatal Clinic by location type 2 Urban 3 595 243 40.8 36.9 44.9 - - -
  Peri-urban 375 135 36.0 31.1 41.1 0.8 0.6 1.1
  Rural 141 41 29.1 30.0 38.4 0.6 0.4 0.9
Antenatal Clinic by Catchment type 2 Peri-urban/urban 3 595 243 40.8 36.9 44.9 - - -
  Rural/peri-urban 176 68 38.6 31.4 46.3 0.9 0.7 1.3
  Rural 340 108 31.8 26.8 37.0 0.7 0.5 0.9
Parity 2 0 3 430 106 24.7 20.6 29.0 - - -
  1 324 150 46.3 40.8 51.9 2.6 1.9 3.6
  2 157 85 54.1 46.0 62.1 3.6 2.5 5.3
  3+ 166 67 40.4 32.8 48.2 2.1 1.4 3.0
  Not known 34 11 32.4 17.4 50.5 - - -
Age 15–19 3 251 49 19.5 14.8 25.0 - - -
  20–24 408 151 37.0 32.3 41.9 2.4 1.7 3.5
  25–29 210 114 54.3 47.3 61.2 4.9 3.2 7.4
  30–34 120 62 51.7 42.4 60.9 4.4 2.7 7.1
  35+ 104 38 36.5 27.3 46.6 2.4 1.4 3.9
  Not known 18 5 27.8 9.7 53.5 - - -
  1. 1 35 women for whom there was no HIV test result removed from these analyses
  2. 2 Estimates includes 18 women for whom age was not reported
  3. 3 Baseline groups for odds ratios