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. 2015 Dec 8;37(2):163–168. doi: 10.1093/carcin/bgv170

Table 1.

Selected demographic characteristics and known breast cancer risk factors

Breast cancer (n = 67)
Age (mean) 46.9
Education ≥ high school (%) 38.2
Age at menarche (mean) 14.2
Post-menopause (%) 32.7
Body mass index (mean) 24.4
Waist-to-hip ratio (mean) 0.79
Regular physical activity (%) 20.0
Family history of breast cancer among first degree relatives 7.3
Estrogen receptor positive (%) 63.0
Progesterone receptor Positive %) 67.9