Heterogeneity in Adolescents’ Non-Suicidal Self-Injury Behaviour Trajectories Based on the Group-Based Trajectory Model and a Decision Tree Analysis of Family-Related Determinants

Linbo Li, Hui Yang College of Nursing, Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of ChinaCorrespondence: Hui Yang, College of Nursing, Shanxi Medical University, No. 56, Xinjian South Road, Yingze District, Taiyuan, Shanxi, 030001, People’s Republic of China, Tel +86 13834668531,...

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Main Authors: Li L, Yang H
Format: Article
Language:English
Published: Dove Medical Press 2023-08-01
Series:Psychology Research and Behavior Management
Subjects:
Online Access:https://www.dovepress.com/heterogeneity-in-adolescents-non-suicidal-self-injury-behaviour-trajec-peer-reviewed-fulltext-article-PRBM
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author Li L
Yang H
author_facet Li L
Yang H
author_sort Li L
collection DOAJ
description Linbo Li, Hui Yang College of Nursing, Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of ChinaCorrespondence: Hui Yang, College of Nursing, Shanxi Medical University, No. 56, Xinjian South Road, Yingze District, Taiyuan, Shanxi, 030001, People’s Republic of China, Tel +86 13834668531, Email qyhui2020@163.comBackground: Non-suicidal self-injury (NSSI) is a global public health problem. While some studies have noted the importance of behavioural development patterns in NSSI, most NSSI research is based on cross-sectional survey data. Few studies explore the time-series heterogeneity of trajectories of NSSI symptoms and family-related influencing factors of NSSI.Aim: The purpose of the study was to identify the heterogeneity in trajectories of adolescents’ NSSI behaviour and their family-related influencing factors.Methods: The group-based trajectory model (GBTM) was used to identify the heterogeneity in the NSSI behaviour trajectories of 208 adolescents in China. Next, the decision tree model (DTM) was used to analyse which family related factors influence the trajectory type.Results: The GBTM revealed two heterogeneous trajectories of NSSI behaviour: the high–risk and low-risk NSSI behaviour groups. Next, DTM’s average accuracy was 83.2%. A total of seven independent variables were used for the DTM: gender, number of NSSIs in the past month, and family economic, family structure, family conflict, parental psychological control, parental behavior control and family intimacy risks. Family conflict risk was located at the root node and was the most important factor.Conclusion: Heterogeneity within the population should be considered in the management of adolescents’ NSSI behaviours. Further, from the perspective of family system theory and cumulative risk, focusing on the adverse effect of multiple risk factors on adolescents’ NSSI addiction is more meaningful rather than the impact of single risk factors. Studies that use time series data should focus on the trend of dynamic changes in NSSI addiction characteristics over time.Keywords: non-suicidal self-injury, group-based, heterogeneity, trajectory, decision tree, influencing factor
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spelling doaj.art-cbed07d29b994b799003ccf4c1f64e7e2023-08-27T18:55:12ZengDove Medical PressPsychology Research and Behavior Management1179-15782023-08-01Volume 163359337186199Heterogeneity in Adolescents’ Non-Suicidal Self-Injury Behaviour Trajectories Based on the Group-Based Trajectory Model and a Decision Tree Analysis of Family-Related DeterminantsLi LYang HLinbo Li, Hui Yang College of Nursing, Shanxi Medical University, Taiyuan, Shanxi, People’s Republic of ChinaCorrespondence: Hui Yang, College of Nursing, Shanxi Medical University, No. 56, Xinjian South Road, Yingze District, Taiyuan, Shanxi, 030001, People’s Republic of China, Tel +86 13834668531, Email qyhui2020@163.comBackground: Non-suicidal self-injury (NSSI) is a global public health problem. While some studies have noted the importance of behavioural development patterns in NSSI, most NSSI research is based on cross-sectional survey data. Few studies explore the time-series heterogeneity of trajectories of NSSI symptoms and family-related influencing factors of NSSI.Aim: The purpose of the study was to identify the heterogeneity in trajectories of adolescents’ NSSI behaviour and their family-related influencing factors.Methods: The group-based trajectory model (GBTM) was used to identify the heterogeneity in the NSSI behaviour trajectories of 208 adolescents in China. Next, the decision tree model (DTM) was used to analyse which family related factors influence the trajectory type.Results: The GBTM revealed two heterogeneous trajectories of NSSI behaviour: the high–risk and low-risk NSSI behaviour groups. Next, DTM’s average accuracy was 83.2%. A total of seven independent variables were used for the DTM: gender, number of NSSIs in the past month, and family economic, family structure, family conflict, parental psychological control, parental behavior control and family intimacy risks. Family conflict risk was located at the root node and was the most important factor.Conclusion: Heterogeneity within the population should be considered in the management of adolescents’ NSSI behaviours. Further, from the perspective of family system theory and cumulative risk, focusing on the adverse effect of multiple risk factors on adolescents’ NSSI addiction is more meaningful rather than the impact of single risk factors. Studies that use time series data should focus on the trend of dynamic changes in NSSI addiction characteristics over time.Keywords: non-suicidal self-injury, group-based, heterogeneity, trajectory, decision tree, influencing factorhttps://www.dovepress.com/heterogeneity-in-adolescents-non-suicidal-self-injury-behaviour-trajec-peer-reviewed-fulltext-article-PRBMnon-suicidal self-injurygroup-basedheterogeneitytrajectorydecision treeinfluencing factor
spellingShingle Li L
Yang H
Heterogeneity in Adolescents’ Non-Suicidal Self-Injury Behaviour Trajectories Based on the Group-Based Trajectory Model and a Decision Tree Analysis of Family-Related Determinants
Psychology Research and Behavior Management
non-suicidal self-injury
group-based
heterogeneity
trajectory
decision tree
influencing factor
title Heterogeneity in Adolescents’ Non-Suicidal Self-Injury Behaviour Trajectories Based on the Group-Based Trajectory Model and a Decision Tree Analysis of Family-Related Determinants
title_full Heterogeneity in Adolescents’ Non-Suicidal Self-Injury Behaviour Trajectories Based on the Group-Based Trajectory Model and a Decision Tree Analysis of Family-Related Determinants
title_fullStr Heterogeneity in Adolescents’ Non-Suicidal Self-Injury Behaviour Trajectories Based on the Group-Based Trajectory Model and a Decision Tree Analysis of Family-Related Determinants
title_full_unstemmed Heterogeneity in Adolescents’ Non-Suicidal Self-Injury Behaviour Trajectories Based on the Group-Based Trajectory Model and a Decision Tree Analysis of Family-Related Determinants
title_short Heterogeneity in Adolescents’ Non-Suicidal Self-Injury Behaviour Trajectories Based on the Group-Based Trajectory Model and a Decision Tree Analysis of Family-Related Determinants
title_sort heterogeneity in adolescents rsquo non suicidal self injury behaviour trajectories based on the group based trajectory model and a decision tree analysis of family related determinants
topic non-suicidal self-injury
group-based
heterogeneity
trajectory
decision tree
influencing factor
url https://www.dovepress.com/heterogeneity-in-adolescents-non-suicidal-self-injury-behaviour-trajec-peer-reviewed-fulltext-article-PRBM
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