Table 4 Odds ratios, 95 % confidence intervals and P values for higher Boyd grades 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
Boyd Classification Cat. A/B | OR | Confidence interval 95 % lower bound upper bound | P value | |
|---|---|---|---|---|
Family history | 1.06 | 0.46 | 2.47 | 0.89 |
Age at menarche | 0.96 | 0.79 | 1.18 | 0.72 |
BMI normal | 1.42 | 0.42 | 4.98 | 0.59 |
BMI overweight | 0.56 | 0.12 | 1.98 | 0.34 |
BMI obese | 0.45 | 0.09 | 2.45 | 0.32 |
Age 35-39 | 3.13 | 1.12 | 9.77 | 0.04 |
Age ≥ 40 | 1.45 | 0.83 | 2.52 | 0.20 |
Boyd Cat. C/D | 0.75 | 0.39 | 1.46 | 0.39 |
Boyd Cat. E/F | 2.05 | 1.07 | 3.93 | 0.03 |