The impact of mobile phone addiction on self-injurious behavior among college students: the mediating effect of rumination and the moderating effect of non-restorative sleep
10.3760/cma.j.cn371468-20250301-00077
- VernacularTitle:大学生手机依赖对自伤行为的影响：反刍思维的中介作用和非恢复性睡眠的调节作用
- Author:
Wenna LIAO
1
;
Fanxu KONG
;
Yongpeng SUN
;
Xianghan LUO
Author Information
1. 广东开放大学公共课教学部，广州 510091
- Publication Type:Journal Article
- Keywords:
Self-injurious behavior;
Mobile phone addiction;
Rumination;
Non-restorative sleep;
Mediating effect;
Moderating effect
- From:
Chinese Journal of Behavioral Medicine and Brain Science
2025;34(11):1030-1036
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the relationship between mobile phone addiction and self-injurious behavior among college students, as well as the mediating effect of rumination and the moderating effect of non-restorative sleep.Methods:In December 2024, a questionnaire survey was conducted among 4 560 students from three universities in Guangdong, using the mobile phone addiction index, ruminative responses scale, non-restorative sleep scale(NRSS) and adolescent non-suicidal self-injury assessment questionnaire. Data analysis was performed using SPSS 29.0 software and the PROCESS v4.2 macro program, with the Bootstrap method used to test mediating and moderating effects.Results:The prevalence of mobile phone addiction among college students was 34.5%(1 572/4 560), and the prevalence of self-injurious behavior was 14.8%(673/4 560). The detection rate of self-injurious behavior in college students with mobile phone addiction (21.2%, 333/1 572) was higher than that in students without mobile phone addiction (11.4%, 340/2 988) ( χ2=78.71, P<0.01). Compared with students without mobile phone addiction, the college students with mobile phone addiction had statistically significant differences in scores of rumination ((44.19±14.24), (35.93±12.37), t=19.47, P<0.01)) and NRSS ((40.63±5.64), (45.12±5.84), t=-24.97, P<0.01)). Analysis of the students with mobile phone addiction showed that the degree of mobile phone addiction was positively correlated with rumination ( r=0.33, P<0.01) and self-injurious behavior( r=0.13, P<0.01). Rumination was positively correlated with self-injurious behavior( r=0.32, P<0.01). The total score of NRSS was negatively correlated with mobile phone addiction ( r=-0.29, P<0.01), rumination ( r=-0.37, P<0.01), and self-injurious behavior ( r=-0.26, P<0.01). Mobile phone addiction had a positive predictive effect on self-injurious behavior( β=0.30, P<0.01). Rumination partially mediated the relationship between mobile phone addiction and self-injurious behavior, with a mediating effect size of 0.15, accounting for 50.00%(0.15/0.30) of the total effect. Non-restorative sleep moderated the first stage of the pathway through which mobile phone addiction affected self-injurious behavior via rumination. When non-restorative sleep was more severe, the positive predictive effect of mobile phone addiction on rumination was significantly strengthened ( βsimple=0.45, P<0.01, 95% CI=0.37-0.53). Non-restorative sleep also moderated the second stage of the pathway through which mobile phone addiction affected self-injurious behavior via rumination. When non-restorative sleep was more severe, the positive predictive impact of rumination on self-injurious behavior became significantly stronger ( βsimple=0.29, P<0.01, 95% CI=0.20-0.38). Conclusion:Mobile phone addiction exacerbates rumination, thereby increasing the risk of self-injurious behavior among college students. This effect is stronger among students with severe non-restorative sleep.
