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Table 3 Odds ratios, 95 % confidence intervals and p-values for higher BIRADS categories (BIRADS 3/4) for characteristics of the study population (Odds ratio for each variable is adjusted for the remaining variables shown in the table)

From: Mammographic breast density in infertile and parous women

BIRADS Cat. 1/2 OR Confidence interval 95 % lower bound upper bound p value
Family history 1.32 0.59 2.95 0.50
Age at menarche 0.86 0.69 1.06 0.15
BMI normal 1.52 0.46 5.03 0.49
BMI overweight 0.50 0.13 1.86 0.30
BMI obese 0.45 0.10 2.06 0.31
Age 35-39 3.99 1.26 12.61 0.02
Age ≥40 2.46 0.77 7.91 0.13
BIRADS 3/4 1.78 1.10 2.89 0.02