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Table 1 Multiple conditional logistic regression comparing cases and controls. Significant demographic predictors of breast cancer risk [Numbers (Percentages (%)], odds ratio (OR), 95% confidence interval (95% CI)

From: Cytochrome P450 1B1 Val432Leu polymorphism and breast cancer risk in Nigerian women: a case control study

Variable   Cases Controls OR 95% CI
Family history breast
Cancer
Yes 14 (6.00) 1 (0.40) 11.17 1.37, 91.33
  No 214 (94.00) 225 (99.60) 1.00  
Age at first fullterm
Pregnancy (>20 years)
Yes 162 (77.20) 136 (65.07) 1.32 1.17, 3.41
  No 48 (22.8) 73 (34.93) 1.00  
Waist/hip ratio (>0.90) Yes 147 (64.47) 107 (47.35) 1.90 1.18, 3.04
  No 81 (35.53) 119 (52.65) 1.00