Background. Limited research has been conducted on the moderating effect of race/ethnicity on objective sleep disturbances in\nbreast cancer survivors (BCSs). Objective. To explore racial/ethnic differences in objective sleep disturbances among BCSs and their\nrelationship with self-reported symptoms. Intervention/Methods. Sleep disturbance and symptoms weremeasured using actigraphy\nfor 72 hours and self-reported questionnaires, respectively, among 79 BCSs. Analysis of covariance, Pearson�s correlation, and\nmultivariate regression were used to analyze data. Results. Sixty (75.9%) participants listed their ethnicity as white, non-Hispanic\nand 19 (24.1%) as minority. Total sleep time was 395.9 minutes for white BCSs compared to 330.4 minutes for minority BCSs.\nSignificant correlations were seen between sleep onset latency (SOL) and depression, SOL and fatigue, and sleep efficiency (SE) and\nfatigue among minority BCSs. Among white BCSs, significant correlations were seen between SE and pain and wake after sleep\nonset (WASO) and pain. The association between depression and SOL and fatigue and SOL appeared to be stronger in minority\nBCSs than white BCSs. Conclusions. Results indicate that white BCSs slept longer than minority BCSs, and race/ethnicity modified\nthe effect of depression and fatigue on SOL, respectively. Implications for Practice. As part of survivorship care, race/ethnicity should\nbe included as an essential component of comprehensive symptom assessments.
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