• Medicine · Jul 2021

    Observational Study

    Influential factors and prediction model of mammographic density among Chinese women.

    • Mu Yan Shang, Shuai Guo, Ming Ke Cui, Yan Fu Zheng, Zhi Xuan Liao, Qiang Zhang, and Hao Zhe Piao.
    • Department of Breast Cancer, Liaoning Cancer Hospital& Institute (Cancer Hospital of China Medical University), Shenyang, China.
    • Medicine (Baltimore). 2021 Jul 16; 100 (28): e26586.

    AbstractTo evaluate the characteristics and influential factors of breast density and establish a new model for predicting breast density in Chinese women, so as to provide a basis for breast cancer screening techniques and duration.A total of 9412 women who were selected from screening and intervention techniques for Breast and Cervical Cancer Project between April 2018 and June 2019 were enrolled in this study. Selected women were randomly assigned to training and validation sets in a ratio of 1:1. Univariable and multivariable analyzes were performed by Logistic regression model. Nomogram was generated according to the results of multivariate analysis. Calibration, area under curve (AUC) and akaike information criterion (AIC) were used for measuring accuracy of prediction model.There were 377 (4.0%) women in breast imaging reporting and data system (BI-RADS) A category, 2164 (23.0%) in B category, 5749 (61.1%) in C category and 1122 (11.9%) in D category. Age duration, educational attainment, history of benign diseases, breastfeeding history, menopausal status, and body mass index (BMI) were imputed as independent influential factors for breast density in multivariable analysis. The AUC and AIC of training and validation set were 0.7158, 0.7139, and 4915.378, 4998.665, respectively.This study indicated that age, educational attainment, history of benign breast disease, breastfeeding history, menopausal status and BMI were independent influential factors of breast density. Nomogram generated on the basis of these factors could relatively predict breast density, which in turn could be used for recommendations of breast cancer screening techniques.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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