Table 1 Risk factors associated with overall HPV infection at baseline
From: A prospective study of age trends of high-risk human papillomavirus infection in rural China
Variables | N (%) | HPV positive, n (%) | Univariate |
|---|---|---|---|
OR (95% CI) | |||
Age |  |  | p < 0.001 |
25-29 | 326 (4.4) | 43 (13.2) | 1.0 |
30-34 | 631 (8.5) | 69 (10.9) | 0.81 (0.54-1.21) |
35-39 | 1330 (18.0) | 153 (11.5) | 0.86 (0.60-1.23) |
40-44 | 1555 (21.0) | 188 (12.1) | 0.91 (0.64-1.29) |
45-49 | 1425 (19.3) | 172 (12.1) | 0.90 (0.63-1.29) |
50-54 | 906 (12.2) | 126 (13.9) | 1.06 (0.73-1.54) |
55-59 | 846 (11.4) | 163 (19.3) | 1.57 (1.09-2.26) |
60-65 | 378 (5.1) | 55 (14.6) | 1.12 (0.73-1.72) |
Household income (Yuan) § | p = 0.044 | ||
≤3000 | 2609 (35.4) | 373 (14.3) | 1.0 |
3001-5000 | 2254 (30.6) | 268 (11.9) | 0.81 (0.68-0.96) |
≥5001 | 2502 (34.0) | 323 (12.9) | 0.89 (0.76-1.04) |
Marital status |  |  | p < 0.001* |
Married | 7180 (97.1) | 920 (12.8) | 1.0 |
Others | 217 (2.9) | 49 (22.6) | 1.99 (1.43-2.75) |
Age at first menstruation period (years) § | p = 0.007 | ||
≤14 | 2654 (35.9) | 323 (12.2) | 1.0 |
15-16 | 2686 (36.4) | 336 (12.5) | 1.03 (0.88-1.22) |
≥17 | 2047 (27.7) | 309 (15.1) | 1.28 (1.09-1.52) |
Age at first sexual intercourse (years) § | p < 0.001* | ||
≤19 | 1499 (20.3) | 252 (16.8) | 1.0 |
20-22 | 4022 (54.4) | 487 (12.1) | 0.68 (0.58-0.80) |
≥23 | 1874 (25.3) | 230 (12.3) | 0.69 (0.57-0.84) |
No. of lifetime sex partners § | p = 0.001* | ||
1 | 6460 (87.3) | 815 (12.6) | 1.0 |
≥2 | 936 (12.7) | 154 (16.5) | 1.36 (1.13-1.65) |
No. of sex partners in the past 6 months | p = 0.006 | ||
0 | 763 (10.3) | 121 (15.9) | 1.0 |
1 | 6553 (88.6) | 831 (12.7) | 0.77 (0.63-0.95) |
≥2 | 81 (1.1) | 17 (21.0) | 1.41 (0.79-2.50) |
Age at first pregnancy (years) § | p = 0.001 | ||
≤20 | 1954 (26.6) | 302 (15.5) | 1.0 |
21-23 | 3553 (48.4) | 427 (12.0) | 0.75 (0.64-0.88) |
≥24 | 1834 (25.0) | 227 (12.4) | 0.77 (0.64-0.93) |
No. of live births § | p < 0.001 | ||
0-2 | 5438 (73.5) | 661 (12.2) | 1.0 |
≥3 | 1958 (26.5) | 307 (15.7) | 1.34 (1.16-1.56) |
Menopausal status § |  | p < 0.001* | |
No | 5363 (72.5) | 629 (11.7) | 1.0 |
Yes | 2033 (27.5) | 339 (16.7) | 1.51 (1.31-1.74) |