Table 2 The distributiona of 205 cases of cervical carcinoma and 213 controls with corresponding odds ratios (OR) and 95% confidence intervals (CI) by chewing and smoking habits, weight and height (Chennai, 1998–1999)

From: Role of paan chewing and dietary habits in cervical carcinoma in Chennai, India

  No. Cases % No. Controls % OR (95% CI) b
Chewing habit
 Never 167 81.5 198 93.0 1c
 Ever 38 18.5 15 7.0 2.30 (1.00–5.34)
Type of paan
 Without tobacco 10 4.9 6 2.8 2.64 (0.71–9.75)
 With tobacco 28 13.6 9 4.2 2.13 (0.78–5.86)
No of paan/day
 <5 16 7.8 9 4.2 1.42 (0.49–4.14)
5 22 10.7 6 2.8 4.00 (1.20–13.33)
χ21 for trend      5.08; P=0.02
Smoking habit
 Never 203 99.0 213 100.0 1c
 Ever 2 1.0 0 0.0 ∞ (0.28–∞)
Weight (kg)
55 58 28.7 86 40.4 1c
 50–54 79 39.1 75 35.2 1.56 (0.84–2.88)
49 65 32.2 52 24.4 1.92 (0.98–3.75)
χ21 for trend      3.72; P=0.06
Height (cm)
155 63 31.2 83 39.0 1c
 151–154 59 29.2 66 31.0 1.14 (0.59–2.20)
150 80 39.6 64 30.0 1.69 (0.89–3.23)
χ21 for trend      2.56; P=0.11
  1. Some strata do not add up to the total because of missing values.
  2. bEstimates from unconditional regression equations, including terms for age and area of residence, education, occupation, marital status, age at first marriage, number of pregnancies and husband's extramarital affairs.
  3. cReference category.