Age distribution among study subjects according to syphilis serostatus
| Age | Incident (%) | Prevalent (%) | Past (%) | No infection (%) | Total |
|---|---|---|---|---|---|
| <25 | 0 (0) | 1 (7.1) | 0 (0) | 13 (92.9) | 14 |
| 25–34 | 5 (2.5) | 11 (5.6) | 25 (12.8) | 155 (79.1) | 196 |
| 35–44 | 6 (1.9) | 22 (7.1) | 80 (26) | 200 (64.9) | 308 |
| >44 | 0 (0) | 3 (13.6) | 6 (27.3) | 13 (59.1) | 22 |
| Total | 11 (2) | 37 (6.8) | 111 (20.6) | 381 (70.6) | 540 |