Socioeconomic Status, Stress, and Cancer-related Fatigue among Chinese American Breast Cancer Survivors: The Mediating Roles of Sleep.

Sleep-related issues may be one significant pathway through which socioeconomic disadvantages are associated with worse self-reported states in cancer. The present study examined the relationships between SES (income and education level) and two important biobehavioral factors (cancer-related fatigue and perceived stress), as well as mediation through sleep-related problems (sleep medication use, daytime dysfunction, and sleep quality) among a sample of Chinese American breast cancer survivors. 136 Chinese American breast cancer survivors completed a self-reported questionnaire. We found that relative to those with the lowest annual household income, those with the highest income have lower perceived stress. This relationship was mediated by lower sleep quality. Relative to those with a high school degree or less, those with graduate degrees have lower daytime dysfunction, and in turn lower cancer-related fatigue. Our findings point to the importance of addressing sleep-related issues, perceived stress, and cancer-related fatigue among Chinese American breast cancer survivors with low SES backgrounds.