Obstructive Sleep Apnea: Prevalence, Risk Factors, and Impact on the Academic Performance of Medical Students at a Saudi Arabian University.

Background: Obstructive sleep apnea (OSA) is a common condition, but there is a lack of evidence from Saudi Arabia regarding its impact on the academic performance of medical students. Objectives: To determine the prevalence and associated factors of OSA among medical students at a Saudi Arabian university and its impact on academic performance. Methods: This cross-sectional study was conducted between October and December 2021 and selected first- to fifth-year medical students at King Saudi University, Riyadh, using a disproportionate stratified random sampling according to gender and academic year. The questionnaire comprised two sections: the first elicited sociodemographic information, self-reported GPA, and presence of chronic diseases, while the second included the English and Arabic versions of the Berlin Questionnaire. Results: A total of 621 responses were received, of which 61.8% were male and the mean age was 21.1 (±1.7) years. The prevalence of high-risk OSA was 14.5%. There was a significant association between being at a high risk of OSA and male gender ( Conclusion: This study found that among first- to fifth-year medical students at a Saudi Arabian university, male gender and obesity were significant predictors of obstructive sleep apnea. On the other hand, obstructive sleep apnea was not a significant predictor of academic performance.