Fig. 1From: The risk of obstructive sleep apnea is highly correlated with depressive symptoms among the Korean adults population: results from the 2020 Korea National Health and Nutrition Examination SurveyDistribution and Density plot of the relationship between PHQ-9 scores and high-risk OSA by sex. Note. OSA: Obstructive Sleep Apnea, PHQ-9: Patient Health Questionnaire-9Back to article page