Table 4

Independent risk factors for HPV infection

AORa95% CIb
Age
 15–251.00
 26–350.510.36–0.71
 36–450.450.30–0.67
 46–550.280.14–0.55
 56–790.150.04–0.53
 (P-trend)(P < 0.001)
Marital status
 Married1.00
 Single1.581.06–2.30
 Cohabitating1.240.83–1.85
 Divorced/separated/widowed3.292.15–5.03
Lifetime no. of male partners
 11.00
 2–32.011.45–2.80
 4–91.871.20–2.91
 ≥103.802.34–6.17
 (P-trend)(P < 0.001)
Chlamydia trachomatis
 Negative1.00
 Positive1.791.20–2.68
Norplant
 Never1.00
 Ever2.691.17–6.19
Injectable contraceptive history
 Never1.00
 Past1.280.91–1.82
 Current2.291.49–3.53
  • a Adjusted OR mutually adjusted for all variables in table.

  • b CI, confidence interval.