Sleep disturbance during COVID-19: Correlates and predictive ability for mental health symptomatology in a Canadian online sample

Abstract

BackgroundSleep disturbance is associated with mental health symptomatology, but this impact is understudied during COVID-19. The aims of this study are to: 1) examine correlates of sleep disturbance, and 2) examine the longitudinal relationship between sleep disturbance and mental health symptoms 6 months later, during the pandemic. MethodsData were analyzed from COVID-19 Survey Canada conducted between May 2020 (T1) and November 2021 (T2) (n = 489). We examined COVID-related baseline correlates of sleep disturbance at T1, and used multivariable regressions to examine the relationship between T1 sleep disturbance and T2 post-traumatic stress (PTS), health anxiety, generalized anxiety, and depressive symptoms, controlling for baseline mental health symptoms and sociodemographics. ResultsFemales, ages 30–49, and those with an annual household income <$50,000, showed a higher prevalence of clinically significant sleep disturbance. After adjustment, compared to those without sleep disturbance at baseline, those with sleep disturbance showed a significant increase in PTS symptoms at 6 months (b = 11.80, 95% CI = [8.21–15.38], p < 0.001). LimitationsResults are not nationally representative. Data may be subject to response biases due to self-report methods and we are unable to determine causality. ConclusionBeing able to predict adverse mental health implications of sleep disturbance will help clinicians be equipped to target future impacts of the COVID-19 pandemic as well as any future potential pandemics or traumas. This study emphasizes the importance of screening individuals for sleep disturbance.