An Estrogen Model: The Relationship between Body Mass Index, Menopausal Status, Estrogen Replacement Therapy, and Breast Cancer Risk
Figure 4
Calibration plot for the postmenopausal breast cancer model, using observations from five studies [16–20]. The solid line indicates perfect calibration; the dashed line is a regression line (); the dotted line is a least squares line, weighted by the number of observed breast cancer cases represented by each data point, an approximate measure of sample size (). The vertical clustering of points on the right side reflects the model’s assumption that relative risk plateaus for .
