| Summary: | Abstract Aim This study aimed to examine the sleep pattern of breast cancer survivors and anxiety and depression associated with sleep quality to provide evidence‐based information for the development of interventions to improve sleep disorders in these survivors. Design A cross‐sectional study. Methods The subjects were 266 breast cancer survivors in South Korea. Structured questionnaires regarding sleep quality, anxiety and depression were used. The data were analysed using t test, ANOVA and multiple regression analysis. Results Sleep duration and sleep disturbance were found to affect anxiety, whereas sleep latency and subjective sleep quality were found to affect depression. These results suggest that various factors affecting sleep quality should be considered when providing care for anxiety and depression in breast cancer survivors.
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