Better sleep predicts longer survival time for women with advanced breast cancer
Higher sleep efficiency in women with advanced breast cancer is significantly associated with lower mortalityDARIEN, IL – A new study reports that sleep efficiency, a ratio of time asleep to time spent in bed, is predictive of survival time for women with advanced breast cancer. Results show that higher sleep efficiency was significantly associated with lower mortality over the ensuing six years, an effect that remained after adjusting for baseline prognostic factors such as age, estrogen receptor status and treatments received. Mean survival was 68.9 months for efficient sleepers