From: A prospective study of age trends of high-risk human papillomavirus infection in rural China
Incidence/Clearance | Risk factors* | Univariate | Multivariate | |
---|---|---|---|---|
 |  |  | OR (95% CI) | OR (95% CI)ξ |
Incidence (n = 1959) | No. of sex partners in the past 6 months | p = 0.002 | p = 0.001 | |
 | 0 | 1.0 | 1.0 | |
 | 1 | 1.01 (0.58-1.76) | 1.11 (0.62-1.97) | |
 | 2 | 6.40 (2.04-20.05) | 7.80 (2.46-24.75) | |
Clearance (n = 832) | Age (years) | p < 0.001 | p < 0.001 | |
 | 25-29 | 1.0 | 1.0 | |
 | 30-34 | 0.30 (0.11-0.80) | 0.28 (0.10-0.78) | |
 | 35-39 | 0.32 (0.13-0.80) | 0.36 (0.14-0.91) | |
 | 40-44 | 0.49 (0.20-1.20) | 0.48 (0.19-1.21) | |
 | 45-49 | 0.34 (0.14-0.84) | 0.35 (0.14-0.89) | |
 | 50-54 | 0.20 (0.08-0.49) | 0.19 (0.07-0.48) | |
 | 55-59 | 0.17 (0.07-0.41) | 0.15 (0.06-0.38) | |
 | 60-65 | 0.10 (0.04-0.30) | 0.11 (0.04-0.33) | |
Education level (years) | p = 0.001 | p = 0.204 | ||
 | ≤6 | 1.0 |  | |
 | 7-12 | 1.61 (1.22-2.13) |  | |
 | ≥13 | 3.29 (1.03-10.51) |  | |
Age at first sexual intercourse (years) | p = 0.037 | p = 0.496 | ||
 | ≤19 | 1.0 |  | |
 | 20-22 | 1.46 (1.05-2.04) |  | |
 | ≥23 | 1.06 (0.72-1.56) |  | |
No. of sex partners in the past 6 months | p = 0.014 | p = 0.066 | ||
 | 0 | 1.0 |  | |
 | 1 | 1.68 (1.08-2.58) |  | |
 | 2 | 0.60 (0.20-1.84) |  | |
Menopausal status § | p < 0.001 | p = 0.433 | ||
 | No | 1.0 |  | |
 | Yes | 0.41 (0.31-0.55) |  | |
No. of live births § | p < 0.001 | p = 0.695 | ||
 | 0-2 | 1.0 |  | |
 | ≥3 | 0.57 (0.42-0.76) |  | |
Signal strength (RLU/CO) | p < 0.001 | p < 0.001 | ||
 | 1.00-9.99 | 1.0 | 1.0 | |
 | 10.00-99.99 | 0.27 (0.20-0.38) | 0.28 (0.20-0.40) | |
 | ≥100.00 | 0.43 (0.29-0.62) | 0.40 (0.27-0.59) | |
HPV16/18/45 | p < 0.001 | p = 0.052 | ||
 | Negative | 1.0 | 1.0 | |
 | Positive | 0.56 (0.40-0.78) | 0.70 (0.48-1.00) |