Table 4.
Risk factors and association with a histological diagnosis of CIN 1 or worse
| Risk factor | OR (95%CI) | p-value |
|---|---|---|
| Age | ||
| <35 years | 1.19 (0.59-2.40) | 0.3 |
| ≥35 years | ||
| Initiation of sexual activity | ||
| <16 years | 2.2 (0.94-5.08) | 0.03 |
| ≥16 years | ||
| Number of partners | ||
| 1 | 0.7 (0.36-1.54) | 0.2 |
| ≥2 | ||
| Number of partners | ||
| <3 | 1.21 (0.5-2.95) | 0.6 |
| ≥3 | ||
| Pregnancies | ||
| None | 0.46 (0.18-1.77) | 0.06 |
| ≥1 | ||
| Oral contraceptive use | ||
| Yes | 1.2 (0.5-2.62) | 0.3 |
| No | ||
| Smoking | ||
| Yes | 0.6 (0.28-1.22) | 0.11 |
| No | ||
| HPV infectiona | ||
| Yes | 2.76 (1.05-7.19) | 0.03 |
| No | ||
| HPV 16 and 18 infection | ||
| Yes | ||
| No | 3.53(1.17-10.67) | 0.02 |
| Infection by HPV types other than HPV 16 and 18 | ||
| Yes | ||
| No | 2.25(0.80-6.36) | 0.08 |
aReference HPV-negative, CIN: Cervical intraepithelial neoplasia