Table 1 Odds ratios (ORs) and 95% confidence intervals (CIs) for HPV seropositivity according to sociodemographic and related variables (n = 4211)
From: Seroprevalence of Human Papillomavirus Types 6, 11, 16 and 18 in Chinese Women
| Â | Â | Â | Anti-HPV 6/11/16/18 | Anti-HPV 6 | Anti-HPV 16 | |||
|---|---|---|---|---|---|---|---|---|
Variable | Categories | n | % | ORa(95% CI) | % | ORa(95% CI) | % | ORa(95% CI) |
Sociodemographic characteristics | ||||||||
Age (years) | 15-24 | 484 | 13.0 | 1.0 | 7.6 | 1.0 | 4.3 | 1.0 |
| Â | 25-34 | 1241 | 14.5 | 1.1 (0.8-1.6) | 7.7 | 1.1 (0.7-1.6) | 6.3 | 1.5 (0.9-2.5) |
| Â | 35-44 | 1252 | 17.3 | 1.3 (1.0-1.8) | 8.4 | 1.1 (0.8-1.7) | 6.9 | 1.5 (0.9-2.5) |
| Â | 45-54 | 1234 | 16.7 | 1.3 (1.0-1.8) | 7.9 | 1.1 (0.7-1.6) | 6.4 | 1.5 (0.9-2.5) |
Race | Han Ethic Group | 3328 | 16.2 | 1.0 | 7.5 | 1.0 | 6.8 | 1.0 |
| Â | Uyghur Ethnic Group | 883 | 14.4 | 1.0 (0.8-1.2) | 9.5 | 1.4 (1.1-1.8) | 4.3 | 0.7 (0.5-1.1) |
Region | Metropolitan | 1566 | 18.6 | 1.0 | 7.7 | 1.0 | 7.7 | 1.0 |
| Â | Rural | 1762 | 14.0 | 0.7 (0.6-0.9) | 7.4 | 1.0 (0.7-1.3) | 6.0 | 0.8 (0.6-1.1) |
Geographic Site | Beijing | 792 | 15.3 | 1.0 | 6.2 | 1.0 | 5.4 | 1.0 |
| Â | Shanghai | 774 | 22.1 | 1.6 (1.2-2.0) | 9.3 | 1.5 (1.1-2.3) | 9.9 | 1.9 (1.3-2.8) |
| Â | Xinjiang | 883 | 14.4 | 1.1 (0.8-1.4) | 9.5 | 1.7 (1.2-2.5) | 4.3 | 1.0 (0.6-1.5) |
| Â | Henan | 878 | 13.0 | 0.9 (0.7-1.2) | 7.4 | 1.3 (0.9-1.8) | 5.1 | 1.0 (0.7-1.6) |
| Â | Shanxi | 884 | 14.9 | 1.0 (0.7-1.3) | 7.4 | 1.2 (0.8-1.8) | 6.9 | 1.3 (0.9-2.0) |
Education level | Primary School or Lower (0-6 year) | 1352 | 14.1 | 1.0 | 8.7 | 1.0 | 4.4 | 1.0 |
|  | Secondary School or Higher (> = 7 year) | 2851 | 16.5 | 1.0 (0.8-1.3) | 7.5 | 0.9 (0.7-1.2) | 7.1 | 1.4 (1.0-1.9) |
Marital status | Single | 34 | 26.5 | 1.0 | 8.8 | 1.0 | 8.8 | 1.0 |
| Â | Married | 3990 | 15.2 | 0.5 (0.2-1.1) | 7.6 | 0.7 (0.2-2.5) | 6.1 | 0.6 (0.2-2.1) |
| Â | Widowed/Separated/Divorced | 185 | 26.0 | 0.8 (0.3-1.9) | 15.1 | 1.4 (0.4-5.3) | 9.7 | 0.8 (0.2-3.3) |
Lifestyle characteristics | ||||||||
Smoking | Never Smoked | 4078 | 15.6 | 1.0 | 7.8 | 1.0 | 6.3 | 1.0 |
| Â | Former/Current Smoker | 131 | 19.9 | 1.2 (0.7-1.8) | 12.2 | 1.6 (0.9-2.8) | 6.1 | 0.8 (0.4-1.7) |
Drinking | Never | 3204 | 15.8 | 1.0 | 7.9 | 1.0 | 6.3 | 1.0 |
| Â | Ever | 832 | 16.5 | 1.0 (0.8-1.3) | 8.4 | 1.2 (0.9-1.6) | 6.6 | 1.0 (0.7-1.4) |
Menstrual and reproductive characteristics | ||||||||
Age at first menstruation | <=13 | 1042 | 14.9 | 1.0 | 8.0 | 1.0 | 5.6 | 1.0 |
| Â | 14-16 | 2468 | 15.8 | 1.1 (0.9-1.4) | 7.8 | 0.9 (0.7-1.2) | 6.4 | 1.3 (0.9-1.8) |
|  | > = 17 | 697 | 17.2 | 1.2 (0.9-1.6) | 8.6 | 1.0 (0.7-1.4) | 6.9 | 1.3 (0.9-2.0) |
Number of Pregnancies | 0 | 155 | 14.2 | 1.0 | 9.7 | 1.0 | 3.9 | 1.0 |
| Â | 1 | 785 | 15.0 | 1.0 (0.6-1.7) | 7.3 | 0.7 (0.4-1.3) | 5.7 | 1.4 (0.6-3.3) |
| Â | 2 | 1196 | 15.6 | 1.0 (0.6-1.6) | 7.2 | 0.7 (0.4-1.3) | 6.6 | 1.4 (0.6-3.4) |
| Â | 3 or more | 2051 | 16.3 | 1.1 (0.7-1.8) | 8.5 | 0.8 (0.4-1.4) | 6.5 | 1.6 (0.7-3.8) |
Abortion | spontaneous only | 356 | 13.5 | 1.0 | 7.0 | 1.0 | 4.8 | 1.0 |
| Â | voluntary only | 1879 | 17.8 | 1.3 (0.9-1.8) | 8.2 | 1.3 (0.8-2.0) | 8.0 | 1.7 (1.0-2.9) |
| Â | both | 271 | 15.9 | 1.2 (0.8-1.9) | 9.6 | 1.4 (0.8-2.5) | 4.4 | 1.0 (0.5-2.1) |
Sexual characteristics | ||||||||
Age at first sexual intercourse | <20 | 1249 | 14.7 | 1.0 | 8.7 | 1.0 | 5.2 | 1.0 |
| Â | 20-24 | 2112 | 15.8 | 1.0 (0.8-1.3) | 8.1 | 1.1 (0.8-1.6) | 6.6 | 1.0 (0.6-1.4) |
|  | > = 25 | 844 | 17.3 | 0.9 (0.6-1.2) | 6.4 | 0.7 (0.5-1.2) | 7.0 | 0.8 (0.5-1.4) |
Ever used contraceptive measures | No | 435 | 17.2 | 1.0 | 10.3 | 1.0 | 6.9 | 1.0 |
| Â | Yes | 3711 | 15.7 | 0.9 (0.6-1.1) | 7.7 | 0.8 (0.5-1.1) | 6.2 | 0.8 (0.5-1.2) |
Lifetime no. sex partners | 1 | 3230 | 13.5 | 1.0 | 6.7 | 1.0 | 4.9 | 1.0 |
| Â | 2 | 634 | 23.3 | 2.0 (1.6-2.4) | 11.7 | 1.7 (1.3-2.3) | 11.7 | 2.6 (1.9-3.5) |
| Â | 3 | 194 | 21.1 | 1.7 (1.2-2.5) | 12.4 | 1.8 (1.1-2.8) | 7.7 | 1.7 (0.9-3.0) |
|  | > = 4 | 123 | 28.5 | 2.6 (1.7-3.9) | 13.8 | 2.0 (1.2-3.4) | 11.4 | 2.7 (1.5-5.0) |
Husband's extramarital sexual relationships | No | 2044 | 13.4 | 1.0 | 6.6 | 1.0 | 4.8 | 1.0 |
| Â | Yes | 856 | 22.7 | 2.0 (1.6-2.5) | 12.4 | 1.8 (1.4-2.4) | 9.1 | 2.2 (1.6-3.0) |
| Â | Unknown | 1526 | 15.5 | 1.3 (1.0-1.5) | 7.5 | 1.1 (0.8-1.4) | 6.9 | 1.6 (1.2-2.1) |