Quantifying the Importance of Lifetime Frequency Versus Number of Methods in Conceptualizing Nonsuicidal Self-Injury Severity
Quantifying the Importance of Lifetime Frequency Versus Number of Methods in Conceptualizing Nonsuicidal Self-Injury Severity
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DOI：
10.1037/vio0000263
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发表时间：
2020-07-01
影响因子：
2.8
通讯作者：
McCloskey, Michael S.
中科院分区：
文献类型：
--
作者：
Ammerman, Brooke A.;Jacobucci, Ross;McCloskey, Michael S.
目的：现有文献一般根据非自杀性自伤的频率来定义非自杀性自伤的严重程度，尽管最近研究人员通过使用不同方法的数量来评估非自杀性自伤的严重程度。然而，关于这些指标在预测临床严重程度方面的相互作用，证据有限。方法：对2.707名大学生（70%为女性，M-age = 20.60, 29.95%有非自杀自伤史）进行调查。分析利用结构方程建模树和结构方程建模林来确定基于非自杀自伤频率和/或与临床严重程度指标相关的方法的潜在亚群。结果：结果显示以下分裂：(a)频率（在0和1行为之间）；(b) >= 1次的频次（8 ~ 9次）；(c) >= 1行为中，方法个数（1 ~ 2）；(d) >= 9行为和>= 2行为的频率（15 ~ 16行为）。结构方程模型森林研究结果表明，非自杀性自伤频率在预测临床严重程度方面的相对重要性。结论：结果表明，尽管非自杀性自伤频率提供了临床严重程度的标志，但频率和使用方法的数量的结合可能在确定严重程度方面更有价值。
Objective: Extant literature has generally conceptualized nonsuicidal self-injury severity in terms of its frequency, although more recently researchers have assessed nonsuicidal self-injury severity by the number of different methods used. There is limited evidence, however, regarding the interaction of these indices in the prediction of clinical severity. Method: The current study aimed to examine these relationships among 2.707 undergraduate students (70% female, M-age = 20.60, 29.95% with nonsuicidal self-injury history) who completed online self-report questionnaires. Analyses utilized structural equation modeling trees and structural equation modeling forests to identify potential subgroups based on nonsuicidal self-injury frequency and/or methods in relation to indicators of clinical severity. Results: Results revealed splits in the following: (a) frequency (between 0 and 1 act); (b) among those with >= 1 acts, frequency (between 8 and 9 acts); (c) among those with >= 1 acts, number of methods (between I and 2 methods); and (d) among those with >= 9 acts and >= 2 methods, frequency (between 15 and 16 acts). Structural equation modeling forest findings demonstrated the relative importance of nonsuicidal self-injury frequency in predicting clinical severity. Conclusions: Results suggest that although nonsuicidal self-injury frequency provides a marker of clinical severity, the combination of frequency and the number of methods used may be more valuable in determining severity.