Department of Psychiatry, Yonsei University Wonju College of Medicine, Wonju, Korea.
Division of Child and Adolescent Psychiatry, Yonsei University Wonju College of Medicine, Wonju, Korea.
PLoS One. 2019 Jul 15;14(7):e0219831. doi: 10.1371/journal.pone.0219831. eCollection 2019.
This study aims to evaluate the association between smartphone use and suicide attempts, independent of possible confounders, including conflicts with family/friends and poor academic performance due to smartphone use. Data were obtained from the 2017 Korea Youth Risk Behavior Web-based Survey, a nationally representative survey of middle- and high-school students (N = 62,276). Time spent using a smartphone was divided into four categories: less than 1 h, 1-2 h, 3-4 h, and 5 h or more a day. The association of conflicts with family due to smartphone use, conflicts with friends due to smartphone use, and poor academic performance due to smartphone use with suicide attempts and time spent using a smartphone were analyzed using multiple and binary logistic regression analyses, respectively. The relationship between time spent on a smartphone and suicide attempts was analyzed using a multiple logistic regression analysis. All analyses were also stratified according to the main purpose of smartphone use (process purposes/social purposes). Conflicts with family/friends due to smartphone use was significantly associated with suicide attempts (P <0.001). The variables of conflicts with family, conflicts with friends and poor academic performance were also proportionally related to higher smartphone use (P <0.001). The use of a smartphone was significantly associated with suicide attempts in a multiple logistic regression analysis (adjusted odds ratio for smartphone use 5 h or more a day 2.16; 95% CI 2.07-2.26; P <0.001), and the association was more prominent with smartphone use for process purposes. Conflicts with family, conflicts with friends, poor academic performance, and suicide attempts were related to higher smartphone use in Korean adolescents. Time spent on a smartphone was positively related to suicide attempts, even after adjusting for conflicts with family members or friends and poor academic performance due to smartphone use.
本研究旨在评估智能手机使用与自杀企图之间的关联，而不受可能的混杂因素的影响，包括因智能手机使用与家人/朋友产生冲突以及因智能手机使用导致学习成绩不佳。数据来自 2017 年韩国青少年风险行为网络调查，这是一项对中学生和高中生（N=62276）进行的全国代表性调查。使用智能手机的时间分为四组：每天少于 1 小时、1-2 小时、3-4 小时和 5 小时或更长时间。因智能手机使用与家人产生冲突、因智能手机使用与朋友产生冲突以及因智能手机使用导致学习成绩不佳与自杀企图和使用智能手机的时间之间的关联分别使用多元和二元逻辑回归分析进行分析。使用多元逻辑回归分析来分析智能手机使用时间与自杀企图之间的关系。所有分析还根据智能手机的主要用途（处理目的/社交目的）进行分层。因智能手机使用与家人/朋友产生冲突与自杀企图显著相关（P<0.001）。与家人、朋友产生冲突以及学习成绩不佳的变量也与更高的智能手机使用成正比（P<0.001）。在多元逻辑回归分析中，智能手机的使用与自杀企图显著相关（每天使用智能手机 5 小时或更长时间的调整后比值比为 2.16；95%置信区间为 2.07-2.26；P<0.001），且与智能手机用于处理目的的关联更为显著。在韩国青少年中，与家人产生冲突、与朋友产生冲突、学习成绩不佳和自杀企图与更高的智能手机使用有关。即使在调整了因智能手机使用与家人或朋友产生冲突以及因智能手机使用导致学习成绩不佳后，使用智能手机的时间也与自杀企图呈正相关。
