Associations of Sleep Quality and Physical Activity with Diabetes Quality of Life in Korean Americans with Type 2 Diabetes: A Cross-Sectional Study

The cross-sectional study aimed to examine the associations of sleep quality and physical activity with diabetes quality of life in Korean Americans with type 2 diabetes. A total of 119 Korean American adults with type 2 diabetes were recruited from Korean communities in Arizona, USA. The Pittsburgh Sleep Quality Index for sleep quality, the International Physical Activity Questionnaire for physical activity, and the Diabetes Quality of Life (DQOL) for quality of life were assessed. Descriptive statistics, bivariate correlations, and multiple linear regressions were conducted. The mean score of the total DQOL was 1.85 (SD = 0.28). Approximately 70% of those had poor sleep quality and a third showed low physical activity. The findings demonstrated that both sleep quality and low physical activity were independent predictors of overall DQOL scores, indicating that poor sleep quality and low physical activity are associated with reduced Diabetes Quality of Life in this demographic. Specifically, the satisfaction subscale of DQOL showed significant associations with low physical activity levels, suggesting that enhancing physical activity could potentially improve satisfaction within DQOL. Furthermore, the impact subscale was positively related to sleep quality, suggesting that better sleep quality might significantly lower the perceived negative impact of diabetes on daily life. No significant associations were found between sleep quality, physical activity, and the worry subscale of DQOL in the adjusted models. The study indicates that addressing sleep quality and promoting physical activity are essential components of diabetes management strategies aimed at improving the quality of life for Korean Americans with type 2 diabetes. This underlines the need for tailored interventions that consider cultural preferences and individual needs to enhance diabetes outcomes and quality of life in this population.