HRs and 95% CIs for a diagnosis of cervical intraepithelial neoplasia grade 3 or worse (CIN3+) according to Chlamydia trachomatis (CT) status among 1390 women infected with high-risk human papillomavirus (HPV) at baseline
| HR* | 95% CI | HR† | 95% CI | |
|---|---|---|---|---|
| CT DNA | ||||
| Negative | 1 | 1 | – | |
| Positive | 0.84 | 0.50 to 1.40 | 0.88 | 0.53 to 1.47 |
| Number of CT DNA-positive tests | ||||
| 0 | 1 | 1 | – | |
| 1 | 0.87 | 0.51 to 1.50 | 0.90 | 0.52 to 1.56 |
| 2 | 0.67 | 0.17 to 2.72 | 0.73 | 0.18 to 2.98 |
| Trend | p=0.5 | p=0.6 | ||
| Self-reported CT infection | ||||
| Never | 1 | 1 | – | |
| Ever | 1.30 | 0.96 to 1.76 | 1.28 | 0.95 to 1.73 |
| Self-reported number of CT infections | ||||
| 0 | 1 | 1 | – | |
| 1 | 1.14 | 0.82 to 1.59 | 1.12 | 0.81 to 1.56 |
| ≥2 | 2.55 | 1.47 to 4.43 | 2.51 | 1.44 to 4.37 |
| Trend | p<0.01 | p<0.01 | ||
| Self-reported age at first CT infection (years) | ||||
| Never | 1 | 1 | – | |
| ≥25 | 1.18 | 0.61 to 2.27 | 1.29 | 0.66 to 2.50 |
| 20–24 | 1.33 | 0.92 to 1.19 | 1.28 | 0.89 to 1.85 |
| ≤19 | 1.34 | 0.78 to 2.31 | 1.27 | 0.73 to 2.19 |
| Continuous (per year)‡ | 0.96 | 0.89 to 1.05 | 0.98 | 0.90 to 1.07 |
*Adjusted for age at baseline.
†Adjusted for the baseline characteristics age, ever given birth, length of schooling and smoking status.
‡Among women who reported CT infection.