Fig. 1

Abbreviations: Multivariable HRs (95% CIs) for incident osteopenia and osteoporosis among breast cancer survivors, stratified by type of treatment, compared with cancer-free women. Models are adjusted for Data are adjusted for age (years), menopausal status (premenopausal, postmenopausal), bilateral oophorectomy at age < 45 years (yes, no), body mass index (kg/m²), physical activity (MET-h/wk), smoking status (never, ever), alcohol intake (g/d), and hormone replacement therapy (never, ever). Abbreviations: AI Aromatase inhibitor, HT Hormone therapy, PT Person time in years