Correlation between stages of breast cancer and BMI in females: a multi-centre study.

Objective: To determine the link between breast cancer and obesity in women by using body mass index at the time of diagnosis.

Methods: The cross-sectional study was conducted from October 2019 to April 2020 at Pakistan Ordinance Factories Hospital, Wah Cantt, and Islamabad Medical Complex National Engineering and Scientific Commission Hospital, Islamabad, Pakistan. The sample comprised women aged 40-70 years with a recent diagnosis of breast cancer.