Figure 1. Mean relative telomere length (RTL) in breast cancer cases and healthy controls. (A) Reduced mean RTL of breast cancer cases (n=183) compared to controls (n=191). The distribution of mean RTL between case and control groups at the subgroup level for age (B), body mass index (BMI) (C), and menopause status (D). Horizontal lines represent the mean RTL; p-values were calculated using the Mann-Whitney U-test.