Subject	Cancer epidemiology
Specific subject area	Cancer prevention, cancer screening
Type of data	Text, tables
How data were acquired	An online survey method was used to collect data (google forms). A supplementary file with the questionnaire is available.
Data format	Raw Analyzed
Parameters for data collection	The medical records of breast cancer and non-breast cancer patients at Sardjito General Hospital Yogyakarta and Dr. M. Djamil General Hospital Padang is reviewed. The data was collected from 200 women in Indonesia who had breast cancer and 200 women who did not have breast cancer to determining reproductive factors (menarche age, menopause age, first pregnancy age, parity, and breastfeeding), high-fat diet and BMI.
Description of data collection	An online survey was sent to breast cancer and non-breast cancer patients in Indonesia using a snowball method.
Data source location	Padang and Yogyakarta - Indonesia
Data accessibility	The data can be found on Mendeley Data. https://data.mendeley.com/datasets/xfcyrffhy7/2