Association of dieting and binge eating with non-suicidal self-injury among secondary vocational school students
Objective To explore the relationship between dieting and binge eating with non-suicidal self-injury(NSSI)among secondary vocational school students,so as to provide a scientific basis for the development of effective interventions to prevent NS-SI.Methods From October to December 2023,2 364 students were selected by stratified cluster random sampling method from nine secondary vocational schools in Guizhou Province to conduct a self-administered questionnaire survey.Unconditional binary Lo-gisitic regression was used to analyze the relationship between dieting,binge-eating behaviours,and the co-occurrence of the two and NSSI among secondary vocational school students,and were stratified by sex.Results The detection rate of NSSI among sec-ondary vocational school students in Guizhou Province was 27.5％,6.8％of secondary vocational school students reported dieting,10.5％reported binge-eating behaviour,and 2.9％showed both dieting and binge-eating behaviours.The adjusted model of uncondi-tional binary Logistic regression showed that the presence of dieting(OR=2.37),binge-eating behaviour(OR=2.31),and the co-occurrence of both(OR=2.60)were associated with higher risk of NSSI among secondary vocational school students;stratified anal-ysis by gender showed that both males and females with dieting,binge eating and coexistence of dieting and binge eating behaviours were at increased risk of NSSI(females:OR=2.27,2.26,2.78;males:OR=2.15,2.08,2.02)(P＜0.01).Conclusions Die-ting and binge eating behavior of secondary vocational school students will increase the risk of NSSI.When preventing and interve-ning NSSI problems of secondary vocational school students,it should pay more attention to eating habits.
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