Characterization of Benign Breast Diseases and Association With Age, Hormonal Factors, and Family History of Breast Cancer Among Women in Sweden.

ABSTRACT:

Importance

Benign breast diseases (BBDs) are common and associated with breast cancer risk, yet the etiology and risk of BBDs have not been extensively studied.

Objective

To investigate the risk of BBDs by age, hormonal factors, and family history of breast cancer.

Design, setting, and participants

This retrospective cohort study assessed 70 877 women from the population-based Karolinska Mammography Project for Risk Prediction of Breast Cancer (KARMA) who attended mammographic screening or underwent clinical mammography from January 1, 2011, to March 31, 2013, at 4 Swedish hospitals. Participants took part in a comprehensive questionnaire on recruitment. All participants had complete follow-up through high-quality Swedish national registers until December 31, 2015. Pa

SUBMITTER: Johansson A 

PROVIDER: S-EPMC8233703 | biostudies-literature | 2021 Jun

REPOSITORIES: biostudies-literature