Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 52 11 2023 10 29 2343 2352 Myoungjin Kwon Department of Nursing, College of Health and Medical Sciences, Daejeon University, Daejeon, Republic of Korea Sun Ae Kim Department of Nursing, Korea National University of Transportation, Chungcheongbuk-do, Republic of Korea Yun Ju Lee Department of Nursing, JEI University, Incheon, Republic of Korea 2022 09 03 2022 12 09 Background: This study aimed to identify the factors associated with suicidal ideation by classifying adolescents into three groups: no stress, interpersonal stress, as well as academic and career stress. Method: Using the data from the 16th Korea Youth Risk Behavior Web-Based Survey (2020), 15,343 adolescents were included in the study, and their socio-demographic characteristics as well as physical and psychological factors were assessed. A complex sample logistic regression was performed to identify factors associated with suicide. Results: The following factors were significantly associated with suicide: fatigue recovery by sleep, body mass index, physical activity, and depression in the no stress group; current school, academic grade, drinking, depression, loneliness, and anxiety in the interpersonal stress group; and gender, current school, academic grade, father’s educational level, drinking, fatigue recovery by sleep, depression, loneliness, subjective health, smartphone overdependence, as well as anxiety in the academic and career stress group. Conclusion: To prevent suicide among adolescents, it is necessary to consider these factors when developing educational policies. https://ijph.tums.ac.ir/index.php/ijph/article/view/29712 https://ijph.tums.ac.ir/index.php/ijph/article/download/29712/8085