Table 2

Multivariate analyses of the association between cervical human papillomavirus infection and selected subjects’ characteristics
No. of tested samples Adjusted model1
POR 95% CI
Age group (years)
 18 308 1.7 1.1–3.1
 19 339 2.2 1.4–3.7
 20–21 452 2.1 1.3–3.4
 22–25 471 1.9 1.2–3.2
 26–35 319 1.1 0.7–1.9
 26–45 326 0.7 0.4–1.2
 46–55 486 0.8 0.5–1.3
 56–65 454 1 reference
P-value for trend <0.001
Residential area
 Rural 329 1 reference
 Suburban 393 1.3 0.8–2.1
 Urban 2428 1.5 1.0–2.2
 Unknown 5 - -
P-value for trend 0.03
Country of birth
 Spain 2886 1 reference
 Other countries 269 1.7 1.3–2.4
Marital status
 Married 1158 1 reference
 Single 1259 2.1 1.4–3.1
 Cohabiting 549 1.8 1.2–2.6
 Divorced/Separated 127 2.3 1.4–3.4
 Widowed 62 3.7 1.7–7.7
Level of education attainment
 No formal education 178 1 reference
 Primary completed 648 0.9 0.5–1.5
 Secondary completed 1286 0.9 0.5–1.4
 University or higher 1040 0.7 0.4–1.1
 Unknown 3 - -
P-value for trend 0.02
Tobacco smoking status
 Never smoked 1599 1 reference
 Ex-smoker 439 1.0 0.7–1.3
 Current smoker 1116 1.6 1.3–1.9
 Unknown 1 - -
P-value for trend <0.001
Ever use of condoms
 Never used 650 1 reference
 Ex or current user 2505 0.9 0.6–1.1
Systematic condom use in last 12 months*
 No 1947 1 reference
 Yes 1031 0.8 0.6–1.0
 Unknown 12 - -
Lifetime number of sexual partners
 1 1560 1 reference
 2 577 1.5 1.1–2.1
 3 397 3.3 2.5–4.5
 ≥4 609 4.1 3.1–5.4
 Unknown 12 - -
P-value for trend <0.001
Age at first sexual intercourse (years)
 ≤14 125 0.5 0.2–1.2
 15–16 685 0.6 0.3–1.2
 17–18 1097 0.7 0.3–1.4
 19–20 492 0.8 0.4–1.6
 21–25 595 1.0 0.5–2.1
 ≥26 145 1 reference
 Unknown 16 - -
P-value for trend 0.003
Current partner circumcised
 No 2366 1 reference
 Yes 369 0.8 0.6–1.1
 Unknown 420 - -
History of genital warts
 No 3061 1 reference
 Yes 87 3.2 2.0–5.2
 Unknown 7 - -

POR, prevalence odds ratio; CI, confidence interval.

1Adjusted model: adjusted for age, Autonomous Community, country of birth, marital status, level of education, smoking habits, lifetime number of sexual partners, and history of genital warts.

*Among women with a sexual partner in the last 12 months.

Bold font indicates a significant effect (P < 0.05).

Roura et al.

Roura et al. BMC Infectious Diseases 2012 12:145   doi:10.1186/1471-2334-12-145

Open Data