A. ANC surveillance HIV prevalence by routine PMTCT HIV test status | |||||
---|---|---|---|---|---|
Total | ANC test results by availability of PMTCT rapid test | ||||
Due to refusal | Due to reasons other than refusal or known positive | ||||
PMTCT HIV status missing due to refusal | PMTCT HIV status not missing due to refusal | PMTCT HIV status missing due to other reasons | PMTCT HIV status not missing due to other reasons | ||
HIV+ | 3283 | 9 | 3274 | 94 | 3189 |
Total | 21222 | 83 | 21139 | 511 | 20711 |
HIV Prevalence | 15.5% | 10.8% (6.6-15.0) | 15.5% (12.8-18.2) | 18.4% (12.5-24.3) | 15.4% (12.7-18.1) |
B. Measures of effect of missing test results on HIV prevalence | |||||
Measure | Due to refusal | Due to reasons other than refusal or known positive | |||
Absolute difference1 | −4.6% | 3.0% | |||
Relative difference2 | −30.0% | 19.5% | |||
Percent bias3 | 0.12% | −0.47% | |||
Prevalence ratio4 | 0.70 | 1.19 |