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Table 4 Comparison of selected results including and excluding community controls, Women’s Circle of Health Study, New Jersey, 2006-2012

From: Rethinking sources of representative controls for the conduct of case–control studies in minority populations

  Cases vs. all controls Excluding community controls
  OR1 95% CI OR1 95% CI
Breastfeeding in parous women (yes vs. no) 0.88 0.66-1.18 0.73 0.49-1.07
Parity (>3 live births vs. none) 0.79 0.52-1.18 0.94 0.54-1.64
Age at first birth (>30 vs ≤30) 0.75 0.49-1.15 0.66 0.39-1.12
Obesity (BMI≥30 vs. BMI<25) [premenopausal women only] 0.86 0.54-1.37 1.17 0.64-2.14
  1. 1Adjusted for age and education.
  2. OR: odds ratio; CI: confidence interval; BMI: Body Mass Index in kg/m2.