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Published on in Vol 9 (2026)

Preprints (earlier versions) of this paper are available at https://preprints.jmir.org/preprint/95340, first published .
Sad teenager sitting alone on steps, head down, conveying feelings of depression and isolation.

Development and Internal Validation of an Interpretable Machine Learning Model for Identifying Past-Year Nonsuicidal Self-Injury Among Adolescents With Depression: Retrospective Study

Development and Internal Validation of an Interpretable Machine Learning Model for Identifying Past-Year Nonsuicidal Self-Injury Among Adolescents With Depression: Retrospective Study

Gaoyang Liu   1, 2 ;   Chenxi Yang   3 ;   Wendan Chen   2 ;   Ningning Ding   2 ;   Wenwen Tian   2 ;   Xinwu Ye   4 ;   Mengdan Luo   2 ;   Xinnan Mao   5 ;   Guohua Zhang   2, 6, 7 ;   Ke Zheng   4

1 School of Nursing, Anqing Medical College, Anqing, Anhui, China

2 School of Mental Health, Wenzhou Medical University, Wenzhou, Zhejiang, China

3 School of Technology and Data, Yantai Nanshan University, Yantai, Shandong, China

4 Wenzhou Seventh People’s Hospital, Wenzhou, Zhejiang, China

5 School of Nursing, Wenzhou Medical University, Wenzhou, Zhejiang, China

6 Zhejiang Provincial Clinical Research Center for Mental Disorders, Kangning Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China

7 Key Research Center of Philosophy and Social Sciences of Zhejiang Province (Institute of Medical Humanities), Wenzhou Medical University, Wenzhou, Zhejiang, China

Corresponding Author:

  • Ke Zheng
  • Wenzhou Seventh People’s Hospital
  • No. 158, Xueshi Qian Road, Panqiao Sub-district, Ouhai District
  • Wenzhou, Zhejiang
  • China
  • Phone: 86 15967446761
  • Email: wzb121001055@163.com