The effects of sleep duration and sleep quality on health outcomes in the Marshallese population in Northwest Arkansas
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The objective of this study was to examine possible correlations between sleep duration and sleep quality on health outcomes in the Marshallese community members in Northwest Arkansas. Little research has been conducted on the association between sleep health and health outcomes in Native Hawaiian Pacific Islanders, and even less so in the Marshallese populations. Using cross sectional date from a cluster randomized controlled trial study (n=374), I will examine whether sleep duration and sleep quality are associated with hypertension, type 2 diabetes, body mass index, and overall self-reported health rating in the Marshallese. Systolic and diastolic blood pressure, HbA1c levels, and height and weight were all measured for hypertension, type II diabetes, and BMI, respectively. General health status was determined by self-reported measures from the National Health and Nutritional Examination survey-derived questions. Sleep duration was categorized as very short sleep (0-4 hours), short sleep (4-7 hours), normal sleep (7-9 hours), and long sleep (9 or more hours). Sleep quality was determined by answers to the question: “Over the last two weeks, how many days have you had trouble sleeping or staying asleep?” For the continuous dependent variables (BMI, blood pressure, and HbA1c), median and interquartile range values were examined. For non-continuous variable (general health outcomes), the Spearman Correlation Coefficient was examined to determine association. Statistically significant associations were found between sleep duration and diastolic blood pressure and HbA1c, and sleep quality and general health. These associations among the Marshallese provide foundation for further longitudinal and intervention research on health disparities in Marshallese residents of the United States.