Table 4.
Incidence Rates for Type-Specific Genital HPV Infection Among MSOM and MSWM in the HIM Study, 2005–2012a
| HPV Typeb | MSOM (n = 93) |
MSWM (n = 471) |
MSOM vs MSWM |
||||
|---|---|---|---|---|---|---|---|
| Incident Events, No. | Person- Months | Incidence Rate (95% CI)c | Incident Events, No. | Person- Months | Incidence Rate (95% CI)b | Incidence Rate Ratio (95% CI) | |
| Any HPV | 40 | 694 | 57.6 (41.2–78.4) | 155 | 4219 | 36.7 (31.2–43.0) | 1.6 (1.1–2.2) |
| 6, 11, 16, or 18 | 28 | 2077 | 13.5 (9.0–19.5) | 131 | 12 361 | 10.6 (8.9–12.6) | 1.3 (.8–1.9) |
| High risk | 44 | 1522 | 28.9 (21.0–38.8) | 158 | 8738 | 18.1 (15.4–21.1) | 1.6 (1.1–2.2) |
| 16 | 18 | 2861 | 6.3 (3.7–9.9) | 70 | 16 287 | 4.3 (3.4–5.4) | 1.5 (.9–2.5) |
| 18 | 7 | 3340 | 2.1 (.8–4.3) | 37 | 18 247 | 2.0 (1.4–2.8) | 1.0 (.5–2.3) |
| 31 | 3 | 3446 | .9 (.2–2.5) | 23 | 18 999 | 1.2 (.8–1.8) | .7 (.2–2.4) |
| 33 | 3 | 3394 | .9 (.2–2.6) | 11 | 19 350 | .6 (.3–1.0) | 1.6 (.4–5.6) |
| 39 | 9 | 3205 | 2.8 (1.3–5.3) | 27 | 18 505 | 1.5 (1.0–2.1) | 1.9 (.9–4.1) |
| 45 | 15 | 2972 | 5.0 (2.8–8.3) | 43 | 18 402 | 2.3 (1.7–3.1) | 2.2 (1.2–3.9) |
| 51 | 15 | 3124 | 4.8 (2.7–7.9) | 54 | 17 186 | 3.1 (2.4–4.1) | 1.5 (.9–2.7) |
| 52 | 9 | 3120 | 2.9 (1.3–5.5) | 57 | 17 521 | 3.3 (2.5–4.2) | .9 (.4–1.8) |
| 58 | 3 | 3418 | .9 (.2–2.6) | 32 | 18 181 | 1.8 (1.2–2.5) | .5 (.2–1.6) |
| 59 | 11 | 3085 | 3.6 (1.8–6.4) | 57 | 17 185 | 3.3 (2.5–4.3) | 1.1 (.6–2.0) |
| 68 | 9 | 3285 | 2.7 (1.3–5.2) | 33 | 18 158 | 1.8 (1.3–2.6) | 1.8 (.8–3.8) |
| Low risk | 37 | 1092 | 33.9 (23.8–46.7) | 173 | 6075 | 28.5 (24.4–33.1) | 1.2 (.8–1.7) |
| 6 | 16 | 2862 | 5.6 (3.2–9.1) | 66 | 16 688 | 4.0 (3.1–5.0) | 1.4 (.8–2.4) |
| 11 | 6 | 3178 | 1.9 (.7–4.1) | 24 | 18 734 | 1.3 (.8–1.9) | 1.5 (.6–3.6) |
| 44 | 2 | 3438 | .6 (.1–2.1) | 46 | 18 195 | 2.5 (1.9–3.4) | .2 (.1–0.9) |
| 53 | 12 | 3231 | 3.7 (1.9–6.5) | 60 | 16 878 | 3.6 (2.7–4.6) | 1.0 (.6–1.9) |
| 54 | 6 | 3229 | 1.9 (.7–4.0) | 50 | 17 966 | 2.8 (2.1–3.7) | .7 (.3–1.6) |
| 61 | 9 | 2973 | 3.0 (1.4–5.7) | 71 | 17 056 | 4.2 (3.3–5.3) | .7 (.4–1.5) |
| 62 | 8 | 3288 | 2.4 (1.1–4.8) | 72 | 16 367 | 4.4 (3.4–5.5) | .6 (.3–1.1) |
| 66 | 12 | 3058 | 3.9 (2.0–6.9) | 53 | 17 362 | 3.1 (2.3–4.0) | 1.2 (.7–2.3) |
| 70 | 9 | 3213 | 2.8 (1.3–5.3) | 30 | 18 349 | 1.6 (1.1–2.3) | 1.7 (.8–3.6) |
| 81 | 8 | 3125 | 2.6 (1.1–5.0) | 42 | 17 763 | 2.4 (1.7–3.2) | 1.1 (.5–2.3) |
| 84 | 18 | 2879 | 6.3 (3.7–9.9) | 89 | 15 753 | 5.6 (4.5–7.0) | 1.1 (.7–1.8) |
| 89 | 18 | 2921 | 6.2 (3.7–9.7) | 75 | 16 449 | 4.6 (3.6–5.7) | 1.4 (.8–2.3) |
Abbreviations: CI, confidence interval; HIM, HPV Infection in Men; HPV, human papillomavirus; MSOM, men having sex only with men; MSWM, men having sex with both women and men.
a The unit of analysis was the individual person.
b HPV genotypes shown are those in the 9-valent vaccine in addition to types with any incidence rate >2.2/1000 person-months and an incidence rate ratio excluding unity.
c Per 1000 person-months.