Breast cancer in Western Australia: clinical practice and clinical guidelines.

Objectives: To review changes in patterns of care for women with early invasive breast cancer in Western Australia from 1989 to 1999, and compare management with recommendations in the 1995 National Health and Medical Research Council guidelines.

Design And Setting: Population-based surveys of all cases listed in the Western Australian Cancer Registry and Western Australian Hospital Morbidity Data System.

Main Outcome Measures: Congruence of care with guidelines.