Baseline risk factors for HPV acquisition
| Risk factor* . | Incident high-risk, HPV (N = 122) . | Odds ratio (95% confidence limits) . | ||
|---|---|---|---|---|
| Age (y) | ||||
| <25 | 50 | 1.00 | ||
| 25-34 | 37 | 0.50 (0.30–0.85) | ||
| 35-44 | 22 | 0.25 (0.14–0.45) | ||
| ≥45 | 13 | 0.09 (0.04–0.17) | ||
| Ethnicity | ||||
| Japanese | 13 | 1.00 | ||
| Caucasian | 45 | 1.11 (0.54–2.29) | ||
| Hawaiian | 14 | 0.83 (0.35–1.98) | ||
| Filipino | 7 | 0.95 (0.32–2.80) | ||
| Other | 43 | 1.12 (0.54–2.35) | ||
| Education | ||||
| ≤ High School | 26 | 1.00 | ||
| Some college | 49 | 0.97 (0.55–1.72) | ||
| College grad | 33 | 1.03 (0.57–1.89) | ||
| Graduate degree | 14 | 1.04 (0.49–2.20) | ||
| No. pregnancies | ||||
| None | 55 | 1.00 | ||
| 1 | 29 | 1.48 (0.84–2.61) | ||
| ≥2 | 38 | 1.04 (0.61–1.79) | ||
| Ever been pregnant | ||||
| No | 55 | 1.00 | ||
| Yes | 67 | 1.22 (0.76–1.95) | ||
| Age at first sexual intercourse | ||||
| <16 | 25 | 1.00 | ||
| 16-17 | 40 | 1.40 (0.77–2.54) | ||
| 18-19 | 35 | 1.44 (0.78–2.67) | ||
| ≥20 | 22 | 1.47 (0.74–2.94) | ||
| No. lifetime sexual partners | ||||
| <2 | 6 | 1.00 | ||
| 2-5 | 47 | 3.46 (1.38–8.72) | ||
| 6-10 | 35 | 5.15 (1.99–13.36) | ||
| ≥11 | 32 | 3.61 (1.40–9.34) | ||
| Ever use oral contraceptives before visit 2 | ||||
| No | 23 | 1.00 | ||
| Yes | 99 | 0.75 (0.43–1.31) | ||
| Current tobacco smoker | ||||
| No | 107 | 1.00 | ||
| Yes | 18 | 1.18 (0.65–2.16) | ||
| Current alcohol drinker | ||||
| No | 71 | 1.00 | ||
| Yes | 51 | 1.16 (0.70–1.93) | ||
| Risk factor* . | Incident high-risk, HPV (N = 122) . | Odds ratio (95% confidence limits) . | ||
|---|---|---|---|---|
| Age (y) | ||||
| <25 | 50 | 1.00 | ||
| 25-34 | 37 | 0.50 (0.30–0.85) | ||
| 35-44 | 22 | 0.25 (0.14–0.45) | ||
| ≥45 | 13 | 0.09 (0.04–0.17) | ||
| Ethnicity | ||||
| Japanese | 13 | 1.00 | ||
| Caucasian | 45 | 1.11 (0.54–2.29) | ||
| Hawaiian | 14 | 0.83 (0.35–1.98) | ||
| Filipino | 7 | 0.95 (0.32–2.80) | ||
| Other | 43 | 1.12 (0.54–2.35) | ||
| Education | ||||
| ≤ High School | 26 | 1.00 | ||
| Some college | 49 | 0.97 (0.55–1.72) | ||
| College grad | 33 | 1.03 (0.57–1.89) | ||
| Graduate degree | 14 | 1.04 (0.49–2.20) | ||
| No. pregnancies | ||||
| None | 55 | 1.00 | ||
| 1 | 29 | 1.48 (0.84–2.61) | ||
| ≥2 | 38 | 1.04 (0.61–1.79) | ||
| Ever been pregnant | ||||
| No | 55 | 1.00 | ||
| Yes | 67 | 1.22 (0.76–1.95) | ||
| Age at first sexual intercourse | ||||
| <16 | 25 | 1.00 | ||
| 16-17 | 40 | 1.40 (0.77–2.54) | ||
| 18-19 | 35 | 1.44 (0.78–2.67) | ||
| ≥20 | 22 | 1.47 (0.74–2.94) | ||
| No. lifetime sexual partners | ||||
| <2 | 6 | 1.00 | ||
| 2-5 | 47 | 3.46 (1.38–8.72) | ||
| 6-10 | 35 | 5.15 (1.99–13.36) | ||
| ≥11 | 32 | 3.61 (1.40–9.34) | ||
| Ever use oral contraceptives before visit 2 | ||||
| No | 23 | 1.00 | ||
| Yes | 99 | 0.75 (0.43–1.31) | ||
| Current tobacco smoker | ||||
| No | 107 | 1.00 | ||
| Yes | 18 | 1.18 (0.65–2.16) | ||
| Current alcohol drinker | ||||
| No | 71 | 1.00 | ||
| Yes | 51 | 1.16 (0.70–1.93) | ||
Adjusted for age as a continuous variable.