“True” unadjusted association among all women
| HIV infected | HIV uninfected | Total | |
|---|---|---|---|
| Unadjusted relative risk (RR) = (114/1905)/(66/2370) = 2.14; 95% CI = 1.60 to 2.89. | |||
| Use of hormonal contraceptives | 114 | 1791 | 1905 |
| No use of hormonal contraceptives | 66 | 2304 | 2370 |