Abstract
Objective: To examine the relationship between body mass index (BMI) and waist–hip ratio (WHR) with serum levels of insulinlike
growth factor-I (IGF-I), and its binding protein (IGFBP)-3.
Design: Cross-sectional study on 2139 women participating in a case–control study on breast cancer and endogenous
hormones. Data on lifestyle and reproductive factors were collected by
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