There were 203 young women (under 40-year old) diagnosed with invasive breast cancer in the First Affiliated Hospital of Wenzhou Medical University among 2008 to 2012.
(*) Adjusted for: age, socioeconomically status (high/medium/low), BMI (kg/m2), familial history of breast cancer in first degree relatives (yes/no), diabetes(yes/no), number of full term pregnancy, a
