Y.Y.LEE1, J.H.LAU1, J.A.VAINGANKAR1, R.SAMBASIVAM1, S.SHAFIE1, B.Y.CHUA1, W.L.CHOW2, D.HENG2, E.ABDIN1, M.SUBRAMANIAM1
Institute of Mental Health1, MOH Holdings Pte Ltd (MOHH)2
Sleep is a fundamental bodily function that ensures physical and mental wellbeing. However, there is a lack in population wide epidemiological studies to estimate the prevalence of poor sleep quality among Singapore residents. The aims of this study are to 1) characterize the sleep quality of a nationally representative sample of Singapore residents using the Pittsburg Sleep Quality Index (PSQI) and 2) identify the sociodemographic correlates of poor sleep in our population.
A total of 6,126 participants responded, giving a response rate of 69.5%. A multivariable logistic regression analysis was conducted to examine the sociodemographic and clinical variables associated with having poor sleep quality. A multinomial logistic regression analysis was utilized to examine correlates of sleep duration (≤6hours vs 7-8hours vs ≥ 9hours).
A total of 27.6% of respondents reported poor sleep quality (PSQI score ≥5). Sociodemographic correlates of poor sleep quality in our population included, but were not limited to, females (AOR = 1.44, 95% CI = 1.17 to 1.77, p-value = 0.001), persons with comorbid mental health conditions (AOR = 14.11, 95% CI = 6.52 to 30.54, p-value < 0.01) and persons with physical multimorbidity (AOR = 1.63, 95% CI = 1.24 to 2.15, p-value < 0.001).
The prevalence of poor sleep in Singapore is comparable to other Asian societies. Certain sociodemographic subgroups were more susceptible to poor sleep in our population. Targeted public health campaigns to psycho-educate vulnerable groups on the importance of good sleep hygiene may improve the overall wellbeing of residents in Singapore.