Non-suicidal self-injury in Chinese adolescents: longitudinal associations with negative life events and life satisfaction

As a clear non-suicidal self-injury risk factor, negative life events can significantly predict non-suicidal self-injury in adolescence whether it is horizontal or vertical. Junior high school students who are exposed to more negative life events are more likely to have non-suicidal self-injury behaviors and the negative life events have a certain lagging effect on non-suicidal self-injury. Due to the prospective effect of life satisfaction on negative life events in adolescents, negative life events play a mediation in the relationship between life satisfaction and non-suicidal self-injury over time.