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Table 4 Reproductive factors, contraceptive methods and screening variables among 144 cases of cervical cancer and 288 controls

From: HPV and cofactors for invasive cervical cancer in Morocco: a multicentre case-control study

  Cases Controls ORa
(95% CI)
ORab
(95% CI)
  No. (%) No. (%)
Age at menarche (in years) n = 140   n = 257    
  ≤ 12 25 17.9 103 40.1 1 1
 13–14 78 55.7 90 35.0 3.6 (2.1–6.2) 3.6 (1.9–6.9)
  ≥ 15 37 26.4 64 24.9 2.4 (1.3–4.4) 2.6 (1.3–5.5)
No. of pregnancies n = 141   n = 276    
  ≤ 3 40 28.4 119 43.1 1 1
  > 3 101 71.6 157 56.9 1.4 (1.1–2.0) 1.2 (0.7–2.2)
Age at first pregnancy n = 130   n = 254    
  ≤ 18 52 40.0 99 39.0 1 1
 19–22 55 42.3 60 23.6 2.2 (1.2–3.9) 2.2 (1.1–4.4)
  > 22 23 17.7 95 37.4 0.4 (0.2–0.8) 0.4 (0.2–0.9)
Age at last pregnancy n = 120   n = 228    
  ≤ 35 67 55.8 119 52.2 1 1
  > 35 53 44.2 109 47.8 0.9 (0.6–1.5) 0.9 (0.5–2.3)
Menopause n = 142   n = 278    
 No 66 53.5 129 46.4 1 1
 Yes 76 46.5 149 53.6 1.1 (0.6–2.2) 1.0 (0.5–2.9)
Age at menopause
  ≥ 50 29 40.3 93 66.0 1 1
 45–49 26 36.1 28 19.9 3.2 (1.3–7.6) 4.2 (0.9–16.5)
  < 45 17 23.6 20 14.2 3.3 (1.2–9.2) 2.5 (0.8–7.9)
Years of use of oral contraceptives n = 140   n = 277    
  < 6 85 60.7 201 72.6 1 1
  ≥ 6 55 39.3 76 27.4 1.8 (1.2–2.8) 1.9 (1.2–3.1)
Use of injectable contraceptives n = 288   n = 141    
 No 135 95.7 277 96.2 1 1
 Yes 6 4.3 11 3.8 1.1 (0.4–2.9) 1.0 (0.3–3.0)
Condom use n = 139   n = 284    
 Yes 12 8.6 69 24.3 1 1
 No 127 91.4 215 75.7 3.3 (1.8–6.4) 3.2 (1.5–6.8)
  1. aOR: Non-adjusted Odd Ratio
  2. bORa: Adjusted Odd Ratio for residence area and HPV infection