Healthy breast MRI results (BIRADS Ⅰ, Ⅱ) Unhealthy breast MRI results (BIRADS, Ⅲ, Ⅳ, Ⅴ, Ⅵ) P All women screened (n=2795) 1360 1435   Estrogen-like group (n=150) 52 98 0.0010*** ***Statistically significant at P<.001

Table 1: Comparison of MRI images from the study population and a subgroup of estrogen users.