Prevalence of Poor Sleep Quality and Associated Factors Among the Elderly in Amirkola City, Iran

Abstract

Background & Aims: One of the problems affecting elderly people's quality of life is sleep problems which has an adverse impact on their social, occupational and other activities. This study was conducted aiming to determine the prevalence of poor sleep quality among the elderly in …, northern Iran.
 Methods: This cross-sectional study is part of the second phase of … Health and Ageing Project (…HAP) which is a cohort study that has been conducted on all elderly people aged 60 and over in … city, north of Iran since 2011. The sleep quality and its related factors were assessed through Pittsburgh Sleep Quality Index (PSQI-P) and interviews, respectively. 
 Results: Of the 1675 elderly people, 914 (54.6%) were male and 761 (45.4%) were female, among them 714 (42.6%) had poor sleep quality. The prevalence of poor sleep quality in women and men was 56.9% and 30.7%, respectively (p <0.001). Poor sleep quality was significantly more frequent among unmarried elderly (50.4%) (p = 0.004), ones with lower education level (p<0.001), and individuals who were living alone (51.3%)(p<0.001) and those with more chronic disease (p<0.001), relative to other groups. Logistic regression analysis revealed that sex, (OR = 2.34, 95% CI (2.85-95.95)) and chronic diseases (OR=4.48, 95% CI (2.02-9.93)) had the most important roles poor sleep quality.
 Conclusion: This study showed relatively high prevalence of poor sleep quality in elderly people, particularly among females. So sleep quality inquiry of the elderly seems pivotal in routine public health assessments by physicians and health care providers.
 Key Words: Aging, Sleep quality, Prevalence, Sleep