Detecting suicidal risk using MMPI-2 based on machine learning algorithm

被引:15
作者
Kim, Sunhae [1 ]
Lee, Hye-Kyung [2 ]
Lee, Kounseok [1 ]
机构
[1] Hanyang Univ, Med Ctr, Dept Psychiat, 222-1 Wangsimni Ro, Seoul 04763, South Korea
[2] Kongju Natl Univ, Dept Nursing, Coll Nursing & Hlth, Gongju, South Korea
基金
新加坡国家研究基金会;
关键词
MENTAL-DISORDERS; ADOLESCENT SUICIDE; PSYCHOLOGICAL-ASSESSMENT; RANDOM FOREST; IDEATION; COMORBIDITY; NEUROBIOLOGY; PREDICTORS; DIAGNOSES;
D O I
10.1038/s41598-021-94839-5
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Minnesota Multiphasic Personality Inventory-2 (MMPI-2) is a widely used tool for early detection of psychological maladjustment and assessing the level of adaptation for a large group in clinical settings, schools, and corporations. This study aims to evaluate the utility of MMPI-2 in assessing suicidal risk using the results of MMPI-2 and suicidal risk evaluation. A total of 7,824 datasets collected from college students were analyzed. The MMPI-2-Resturcutred Clinical Scales (MMPI-2-RF) and the response results for each question of the Mini International Neuropsychiatric Interview (MINI) suicidality module were used. For statistical analysis, random forest and K-Nearest Neighbors (KNN) techniques were used with suicidal ideation and suicide attempt as dependent variables and 50 MMPI-2 scale scores as predictors. On applying the random forest method to suicidal ideation and suicidal attempts, the accuracy was 92.9% and 95%, respectively, and the Area Under the Curves (AUCs) were 0.844 and 0.851, respectively. When the KNN method was applied, the accuracy was 91.6% and 94.7%, respectively, and the AUCs were 0.722 and 0.639, respectively. The study confirmed that machine learning using MMPI-2 for a large group provides reliable accuracy in classifying and predicting the subject's suicidal ideation and past suicidal attempts.
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页数:9
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