Epidemiology of sleep disturbances among medical students in the Middle East and North Africa: a systematic review and meta-analysis.

Background: Sleep disturbances and their associated health issues are common among medical students. Despite this, the epidemiology of sleep disturbances among medical students in the Middle East and North Africa (MENA) region remains inadequately understood. Our objective was to synthesise the prevalence of sleep disturbances, including poor sleep quality, insufficient sleep duration, and excessive daytime sleepiness (EDS), and their variation in relation to academic performance and stress levels.

Methods: We performed a systematic review and meta-analysis. Two independent reviewers searched PubMed, Web of Science, Google Scholar, and the reference lists of relevant studies and reviews up to May 2024. We assessed the quality of the included studies using a risk of bias tool. We performed meta-analyses using random-effects models and used Cochran's Q between-subgroups statistic to test for differences across subgroups. We used the I² statistic to assess the statistical heterogeneity. Further, we assessed the publication bias using Doi plots.

Results: We included 150 studies conducted in 16 MENA countries. We found that 59.1% of medical students suffer from poor sleep quality (Pittsburgh Sleep Quality Index mean (x̄) = 8.5; 95% confidence interval (CI) = 7.0-10.1), 59.8% have insufficient sleep duration (<7 hours per night) averaging 6.1 hours per night (95% CI = 5.4-6.9), and 38.4% experience EDS (Epworth Sleepiness Scale x̄ = 8.6; 95% CI = 8.0-9.1). Our results indicate a significantly higher prevalence of poor sleep quality among students with moderate or high stress levels during the preclinical training period and in low-income MENA countries. A significantly higher prevalence of insufficient sleep duration was found among students during preclinical academic years. A significantly higher prevalence of EDS was found among students in public medical schools and those in low-income MENA countries. We observed no differences in poor sleep quality and EDS between students with poor and good academic performance.

Conclusions: Our findings highlight the substantial prevalence of sleep disturbances among MENA medical students. Medical schools must address this critical issue with targeted, locally informed, and culturally appropriate interventions. Further research is needed to assess the association between sleep disturbances and identify factors for tailored interventions that mitigate the adverse consequences on medical students' health and well-being.

Registration: Open Science Framework BF2A6.