This study was performed to examine whether depressive symptoms (DPs) and low self-control (LSC) traits has modifying effects on the association of time spent on Internet gaming and problematic Internet game use (PIGU). Among 1,535 middle school students, 42.1 percent reported playing ≥1.5 hours of Internet games/day on average, and 10.0 percent were classified as PIGU. Stratified multiple logistic regression analysis showed gameplay of ≥1.5 hours/day led to more PIGU in the non-LSC traits group (higher DP group, p < 0.001; lower group, p = 0.019). In LSC trait group, in contrast, time spent on Internet gamine was not associated with PIGU regardless of the level of DP. Adolescents without LSC traits, to which most youths belong, might have higher possibility of PIGU if they do not limit their time spent on Internet gaming, regardless of whether they are depressed or not. In case of LSC trait, additional strategies would be needed. ClinicalTrials.gov identifier: NCT02415322.

中文翻译：

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抑郁症状和自我控制特质对有问题的网络游戏与花费时间之间关联的调节作用

进行这项研究是为了检查抑郁症状 (DPs) 和低自我控制 (LSC) 特征是否对网络游戏时间和有问题的网络游戏使用 (PIGU) 的关联有修正影响。在1535名中学生中，42.1%的人平均每天玩≥1.5小时的网络游戏，10.0%的人被归类为PIGU。分层多元逻辑回归分析显示，≥1.5 小时/天的游戏玩法导致非 LSC 特征组中更多的 PIGU（较高 DP 组，p  < 0.001；较低组，p = 0.019)。相比之下，在 LSC 特质组中，无论 DP 水平如何，花在互联网游戏上的时间都与 PIGU 无关。大多数青少年属于没有LSC特征的青少年，如果不限制他们在网络游戏上花费的时间，无论他们是否抑郁，他们可能有更高的PIGU可能性。如果是 LSC 性状，则需要额外的策略。ClinicalTrials.gov 标识符：NCT02415322。