Fig. 6

Associations of a STRATUS area mammographic densities, b Volpara volumetric mammographic densities, with breast cancer risk in postmenopausal women and, c comparison of regression coefficients for premenopausal and postmenopausal women. *Adjusted for relevant confounding factors. ^†Z-tests comparing estimated regression coefficients between the STRATUS and Volpara studies. ^‡Z-tests comparing estimated regression coefficients between premenopausal and postmenopausal women