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Table 1 HIV/STI rates and sexual behavior characteristics by clinic, all women screened (January 2006)

From: Interim data monitoring to enroll higher-risk participants in HIV prevention trials

Prevalence/characteristic Apapa Ikeja Central Peripheral
HIV prevalence
(%, 95% CI)*
20.1
(17.2, 23.2)
8.7
(6.5, 11.4)
14.3
(11.9, 16.9)
17.3
(13.8, 21.3)
Gonorrhea prevalence
(%, 95% CI)*
14.9
(12.2, 18.0)
6.7
(4.6, 9.4)
3.4
(2.2, 5.0)
5.5
(3.5, 8.2)
Chlamydia prevalence
(%, 95% CI)*
5.4
(3.7, 7.5)
5.3
(3.4, 7.7)
2.9
(1.8, 4.3)
2.2
(1.0, 4.2)
Average number of coital acts in last week 3.9 2.8 7.1 5.6
Average number of new partners in last month 1.8 0.4 8.2 5.1
Proportion of coital acts protected by condom in last week (%) 66.7 52.0 55.2 59.3
  1. *cumulative (i.e., proportion of infections among all participants screened into the study by January 2006)