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Table 3 Odds of having mixed/dense MD and long-term exposure to traffic-related air pollution (NO 2 per 10 μg/m 3 , NO x per 20 μg/m 3 ) among 4,769 women

From: Long-term exposure to air pollution and mammographic density in the Danish Diet, Cancer and Health cohort

  Model 1 a Model 2 b Model 3 c Model 4 d
OR (95% CI) OR (95% CI) OR (95% CI) OR (95% CI)
All women (n = 4,769)     
Baseline NOx 0.99 (0.96-1.02) 0.97 (0.94-1.00) 0.97 (0.94-1.00) 0.97 (0.94-1.00)
NOx since 1971 0.98 (0.94-1.02) 0.96 (0.92-1.00) 0.96 (0.92-1.00) 0.96 (0.93-1.01)
Baseline NO2 0.98 (0.92-1.06) 0.93 (0.86-1.00) 0.92 (0.85-1.00) 0.93 (0.86-1.00)
NO2 since 1971 0.95 (0.86-1.04) 0.89 (0.80-0.99) 0.89 (0.80-0.99) 0.89 (0.80-0.98)
  1. OR - odds ratio; CI - confidence interval; aadjusted for age; badjusted for Model 1 and BMI, HRT status, HRT duration, number of children; cadjusted for Model 2 and alcohol use, alcohol intake (g/day), physical activity, education level; dadjusted for Model 3 and smoking status, smoking duration, smoking intensity (g/day).