Table 1

Odds ratios (ORs) and 95% confidence intervals (CIs) for HPV seropositivity according to sociodemographic and related variables (n = 4211)
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
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)
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)
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
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
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
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)
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)
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)
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
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)
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
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
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
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
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)
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)
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
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)
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
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
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
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)
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
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)
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)

aOR: adjusted for age, geographic site and HPV DNA positivity on each variable, with exception on age variable with OR adjusted for geographic site and HPV DNA positivity, and on race, region, and geographic site variable with OR adjusted for age and HPV DNA positivity.

Ji et al.

Ji et al. BMC Infectious Diseases 2012 12:137   doi:10.1186/1471-2334-12-137

Open Data