Trends in Parity and Breast Cancer Incidence in US Women Younger Than 40 Years From 1935 to 2015

by Lima et al

The objective of the study was to examine whether secular trends in parity explain the increase in breast cancer incidence among US women aged 25 to 39 years from 1935 to 2015. The study concluded that breast cancer incidence for women aged 25 to 39 years has been significantly increasing since the 1930s and cannot be attributed to changes in parity over time. 

16th March 2020 • comment