HSV-2 seroprevalence at age 26 by sexual behaviour* and other characteristics
| Males (n = 450) | Females (n = 419) | |||||
|---|---|---|---|---|---|---|
| Characteristic | No (%) positive | Prevalence ratio | 95% CI | No (%) positive | Prevalence ratio | 95% CI |
| *Analysis of sexual behaviour variables excludes 13 males and 10 females with no sexual partners in their lifetimes. | ||||||
| Lifetime number of partners | ||||||
| ≥21 (87 M, 57 F) | 11 (12.6%) | 3.7 | 1.3–10.3 | 15 (26.3%) | 3.3 | 1.6–6.6 |
| 11 to 20 (101 M, 78 F) | 7 (6.6%) | 2.0 | 0.7–6.2 | 23 (29.5%) | 3.7 | 1.9–7.0 |
| 6 to 10 (91 M, 119 F) | 7 (7.7%) | 2.3 | 0.7–6.9 | 13 (10.9%) | 1.4 | 0.7–2.9 |
| 1 to 5 (146 M, 150 F) | 5 (3.4%) | 1.0 | 12 (8.0%) | 1.0 | ||
| Number of partners in past 5 years | ||||||
| ≥6 (171 M, 92 F) | 18 (10.5%) | 2.3 | 0.8–6.6 | 25 (27.2%) | 3.6 | 1.8–7.4 |
| 2 to 5 (170 M, 183 F) | 8 (4.7%) | 1.0 | 0.3–3.3 | 29 (15.8%) | 2.3 | 1.1–4.7 |
| 0 to 1 (88 M, 131 F) | 4 (4.5%) | 1.0 | 9 (6.9%) | 1.0 | ||
| Age at first intercourse | ||||||
| ≤13 years (29 M, 25 F) | 6 (20.7%) | 4.7 | 1.9–11.8 | 8 (32.0%) | 2.7 | 1.4–5.5 |
| 14–16 years (157 M, 188 F) | 15 (9.6%) | 2.2 | 1.0–4.6 | 32 (17.0%) | 1.5 | 0.9–2.4 |
| >16 years (249 M, 197 F) | 11 (4.4%) | 1.0 | 23 (11.7%) | 1.0 | ||
| Condom at last intercourse? | ||||||
| No (281 M, 308 F) | 24 (8.5%) | 2.1 | 0.9–5.1 | 53 (17.2%) | 1.7 | 0.9–3.2 |
| Yes (150 M, 99 F) | 6 (4.0%) | 1.0 | 10 (10.0%) | 1.0 | ||
| STD in past 5 years? | ||||||
| Yes (75 M, 65 F) | 10 (13.3%) | 2.6 | 1.2–5.4 | 24 (36.9%) | 3.3 | 2.1–5.0 |
| No (348 M, 343 F) | 18 (5.2%) | 1.0 | 39 (11.4%) | 1.0 | ||
| Socioeconomic status at 15 years | ||||||
| Low (34 M, 43 F) | 2 (5.9%) | 1.0 | 0.2–4.7 | 11 (25.6%) | 3.2 | 1.5–6.8 |
| Middle (216 M, 187 F) | 15 (6.9%) | 1.2 | 0.5–2.8 | 31 (16.6%) | 2.1 | 1.1–3.9 |
| High (141 M, 136 F) | 8 (5.7%) | 1.0 | 11 (8.1%) | 1.0 | ||
| Highest school qualification | ||||||
| High school or less (161 M, 147 F) | 18 (11.2%) | 10.0 | 1.4–73.3 | 28 (19.0%) | 2.6 | 1.3–5.6 |
| Post-secondary, not university (195 M, 158 F) | 12 (6.2%) | 5.5 | 0.7–41.5 | 27 (17.1%) | 2.4 | 1.1–5.0 |
| University (89 M, 111 F) | 1 (1.1%) | 1.0 | 8 (7.2%) | 1.0 | ||