Table 3.
Age-specific and sex distribution of seroconversion cases and the corresponding rates per 1000 person-months in naïve subjects (seronegative at visit 1) with more than one visit (n = 1002).
| Age group, years | Seroconversion |
|||||
|---|---|---|---|---|---|---|
| Female, n (%) | Male, n (%) | Total | Person-months | Rate | 95% CI | |
| 1–5 | 5 (6.7) | 9 (19.1) | 14 | 2916 | 4.8 | (2.9–8.2) |
| 6–10 | 8 (10.7) | 13 (27.7) | 21 | 3210 | 6.5 | (4.2–10.0) |
| 11–15 | 12 (16.0) | 12 (25.5) | 24 | 3192 | 7.5 | (5.0–11.1) |
| 16–20 | 7 (9.3) | 3 (6.4) | 10 | 1218 | 8.2 | (4.4–15.3) |
| 21–30 | 14 (18.7) | 4 (8.5) | 18 | 1260 | 14.3 | (8.9–22.5) |
| 31–40 | 12 (16.0) | 2 (4.3) | 14 | 780 | 17.9 | (10.6–30.3) |
| 41–50 | 8 (10.67) | 2 (4.3 | 10 | 594 | 16.8 | (9.1–31.3) |
| >50 | 9 (11.9) | 2 (4.3) | 11 | 798 | 13.8 | (7.6–24.7) |
| Total | 75 (100) | 47 (100) | 122 | 14 028 | 8.7 | (7.3–10.4) |
CI, confidence interval.