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Trajectory of Sleep Quality and Duration Among Women’s Health Initiative Breast Cancer Survivors

Beverly, Chloe Marie

Abstract Details

2017, Master of Science, Ohio State University, Public Health.
INTRODUCTION: It is common for breast cancer survivors to have sleep problems, including poor sleep quality, poor sleep efficiency, and sleep disturbance. It is estimated that between 20-70% of survivors report at least one type of sleep disturbance. Common sleep problems may contribute to quality of life and health status differences among survivors. Currently, there is limited information on the sleep problems of cancer survivors by various ages—particularly among the elderly—and by race. The objectives of this study were to examine patterns in sleep quality and duration before and after cancer diagnosis among Women’s Health Initiative (WHI) postmenopausal breast cancer survivors using the WHI Insomnia Rating Scale (WHIIRS). METHODS: A secondary analysis of 12,098 breast cancer survivors from the WHI was conducted. We fit a linear mixed model to the sleep quality data, containing slopes which differed by time period (before diagnosis and after diagnosis), to examine if the trend in sleep quality with time changed following a cancer diagnosis. We then fit a logistic regression model for sleep duration with multilevel mixed effects. RESULTS: Women had an average sleep quality WHIIRS score of 6.5 at baseline and about 30% of women at baseline had insomnia. There was a significant change in sleep quality score after breast cancer diagnosis in the overall sample, however no significant differences were seen by race/ethnicity, age at diagnosis, or by cancer state at diagnosis. The probability of short or long sleep duration (<6 hours or =9 hours, respectively) did not significantly change after diagnosis. Women diagnosed in the oldest age group had significantly different probabilities of short and long sleep as compared to the youngest at diagnosis. The proportion of women with depressive symptoms significant decreased after diagnosis. DISCUSSION: Our study findings suggest sleep quality and sleep duration in postmenopausal women are likely not affected by a breast cancer diagnosis over a long period, compared to their sleep before diagnosis. Certain demographic characteristics may influence sleep duration. Addressing sleep quality and duration is important in improving the health-related quality of life and general health of all breast cancer survivors.
Julie Bower, PhD (Advisor)
Randi Foraker, PhD (Committee Member)
64 p.

Recommended Citations

Citations

  • Beverly, C. M. (2017). Trajectory of Sleep Quality and Duration Among Women’s Health Initiative Breast Cancer Survivors [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1491990445245436

    APA Style (7th edition)

  • Beverly, Chloe. Trajectory of Sleep Quality and Duration Among Women’s Health Initiative Breast Cancer Survivors. 2017. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1491990445245436.

    MLA Style (8th edition)

  • Beverly, Chloe. "Trajectory of Sleep Quality and Duration Among Women’s Health Initiative Breast Cancer Survivors." Master's thesis, Ohio State University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=osu1491990445245436

    Chicago Manual of Style (17th edition)