Influence of the dramatic fall of HRT prescription on postmenopausal breast cancer incidence: The Austrian Data

Background: The Women's Health Initiative trial showed a significant increase in breast cancer risk among women using HRT. This publication led to a dramatic fall in HRT prescription worldwide. Several studies argued that the ensuing decline in breast cancer incidence among postmenopausal women was due to the reduced HRT prescriptions. We have investigated whether the strong decline in HRT prescription in Austria from 2002 onwards was associated with a decrease in postmenopausal breast cancer incidence. Methods: Breast cancer incidence data were obtained from the National Austrian cancer registry. HRT prescripti…