Figure 1. Breast Cancer by Type 2 Diabetes and BMI Statusa, Reykjavik and AGES-Reykjavik Study, 1968–2015.
Abbreviations: Low BMI = <25 kg/m2
High BMI = ≥25 kg/m2 and no type 2 diabetes
T2D = Presence of type 2 diabetes 2
aHazard ratios (HR) and 95% confidence intervals (CI) obtained by Cox regression with age as time metric and adjusted for birth cohort, height, education, place of residence, smoking status, physical activity, parity, age at menarche and first live birth.
Women in AGES study (N=3,103); models also include alcohol intake, hormone treatment, and breast feeding. Parity and age at first live birth were combined into one variable (no children, parous <25 or ≥25 years).
