Highlights ■ Physical activity level is associated with responsiveness to hormones in women with breast cancer. ■ Sedentary behavior is significantly related to the histological tumor grade in women with breast cancer. ABSTRACT Objective A comparative analysis of the association between sedentary behavior versus physical activity levels and tumor staging in women with breast cancer. Methods The present research adopted a cross-sectional study design to recruit a total of 55 adult and elderly women newly diagnosed with breast cancer for […]