Table 1 Effect of adjustment by potential confounding factors on the odds ratio (OR) of cervical cancer by education level
From: Differences in the risk of cervical cancer and human papillomavirus infection by education level
Adjustment variables | OR (95% CI) ⩽5 vs >5 years of education |
|---|---|
Age+study area | 2.64 (2.27–3.06) |
As above+ | |
Lifetime number of sexual partners | 2.55 (2.19–2.97) |
Age at first intercourse | 2.03 (1.73–2.37) |
Husband's extramarital sexual relationships | 2.62 (2.21–3.11) |
Parity | 2.22 (1.90–2.59) |
Age at first pregnancy | 2.13 (1.80–2.52) |
Oral contraceptive use | 2.40 (2.02–2.84) |
Condom use | 2.61 (2.25–3.03) |
Smoking | 2.65 (2.28–3.08) |
History of Pap smear | 2.25 (1.92–2.62) |
All the above (except condom use and smoking) | 1.41 (1.11–1.79) |
