Does mammographic density mediate risk factor associations with breast cancer? An analysis by tumor characteristics

ConclusionPercent MD partially mediated the associations between breast biopsy, nulliparity, age at first birth, and hormone therapy with risk of breast cancer, particularly among postmenopausal women, suggesting that these risk factors at least partially influence breast cancer risk through changes in breast tissue composition.
Source: Breast Cancer Research and Treatment - Category: Cancer & Oncology Source Type: research