Responses elicited to the sex related questions comparing FFI and ACASI
| Question | FFI (%) | ACASI (%) | p Value |
|---|---|---|---|
| n, the number of patients who answered the question in both interview modes. | |||
| *Genital exposure refers to the insertion of the penis into the vagina; Oral exposure refers to orogenital contact (mouth to penis or mouth to vagina); Rectal exposure refers to receptive anal intercourse (penis to anus). NS, not significant. The Wilcoxon signed rank test was used to compare categorical responses (sexual orientation and number of sex partners in the past month), and the sign test was used to compare binary responses. ACASI, audio computer assisted interview; FFI, face to face interview; IDU, injection drug users. | |||
| Exchanged sex for money/drugs (n = 661) | 10.1 | 13.3 | <0.05 |
| Men | 5.8 | 5.8 | NS |
| Women | 14 | 20 | <0.001 |
| Age 18–24 | 1.3 | 6.7 | <0.001 |
| Age 25–64 | 15.2 | 17.1 | NS |
| Sexual orientation (opposite, same, both) (n = 571) | 99, 0.4, 0.6 | 97, 1.4, 1.6 | <0.05 |
| No of sex partners in past month (0–1, 2–5, >5) (n = 572) | 65, 34.1, 0.9 | 60.3, 36.4, 3.3 | <0.001 |
| Men | 49.5, 49.1, 1.4 | 45.8, 49.1, 5.1 | <0.05 |
| Women | 79.7, 20, 0.3 | 73.9, 24.4, 1.7 | <0.05 |
| Age 18–24 | 67.6, 31.9, 0.5 | 61.1, 36.1, 2.8 | <0.05 |
| Age 25–64 | 63.4, 35.5, 1.1 | 59.7, 36.6, 3.7 | <0.05 |
| Genital exposure* (n = 547) | 99.5 | 96.7 | <0.05 |
| Men | 99.6 | 95.8 | <0.05 |
| Women | 99.3 | 97.5 | NS |
| Age 18–24 | 99.5 | 96.6 | NS |
| Age 25–64 | 99.4 | 96.8 | <0.05 |
| Oral exposure* (n = 540) | 44.6 | 56.3 | <0.001 |
| Men | 41 | 56 | <0.001 |
| Women | 47.9 | 56.6 | <0.001 |
| Age 18–24 | 42.5 | 54.1 | <0.001 |
| Age 25–64 | 45.6 | 57.6 | <0.001 |
| Receptive rectal exposure* (n = 291) | 6.5 | 20.6 | <0.001 |
| Men | 0.3 | 0.7 | NS |
| Women | 6.2 | 19.9 | <0.001 |
| Age 18–24 | 1.7 | 7.2 | <0.001 |
| Age 25–64 | 4.8 | 13.1 | <0.001 |