A Random Forest Model for Predicting Social Functional Improvement in Chinese Patients with Schizophrenia After 3 Months of Atypical Antipsychotic Monopharmacy: A Cohort Study

Yange Li,1 Lei Zhang,1 Yan Zhang,1 Hui Wen,1 Jingjing Huang,1,2 Yifeng Shen,1– 3 Huafang Li1– 3 1Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China; 2Shanghai Key Laboratory of Psychotic Disorders, Mental Health...

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Main Authors: Li Y, Zhang L, Zhang Y, Wen H, Huang J, Shen Y, Li H
Format: Article
Language:English
Published: Dove Medical Press 2021-03-01
Series:Neuropsychiatric Disease and Treatment
Subjects:
Online Access:https://www.dovepress.com/a-random-forest-model-for-predicting-social-functional-improvement-in--peer-reviewed-article-NDT
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author Li Y
Zhang L
Zhang Y
Wen H
Huang J
Shen Y
Li H
author_facet Li Y
Zhang L
Zhang Y
Wen H
Huang J
Shen Y
Li H
author_sort Li Y
collection DOAJ
description Yange Li,1 Lei Zhang,1 Yan Zhang,1 Hui Wen,1 Jingjing Huang,1,2 Yifeng Shen,1– 3 Huafang Li1– 3 1Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China; 2Shanghai Key Laboratory of Psychotic Disorders, Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China; 3Shanghai Clinical Research Center for Mental Health, Shanghai, People’s Republic of ChinaCorrespondence: Huafang LiShanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600, Wan Ping Nan Lu, Shanghai, 200030, People’s Republic of ChinaTel +86 21 34773122Fax +86-21-54240982Email lhlh_5@163.comPurpose: Impaired social functions contribute to the burden of schizophrenia patients and their families, but predictive tools of social functioning prognosis and specific factors are undefined in Chinese clinical practice. This article explores a machine learning tool to identify whether patients will achieve significant social functional improvement after 3 months of atypical antipsychotic monopharmacy and finds the defined risk factors using a multicenter clinical study.Patients and Methods: A multicenter study on atypical antipsychotic (AAP) treatment in Chinese patients with schizophrenia (SALT-C) was conducted from July 2011 to August 2018. Data from 550 patients with AAP monopharmacy from their baseline to their 3-month follow-up were used to establish machine learning tools after screening. The positive outcome was an increase in the Personal and Social Performance (PSP) scale score by ≥ 10 points. The predictors were a range of investigator-rated assessments on symptoms, functioning, the safety of AAPs and illness history. The Least Absolute Shrinkage and Selection Operator (LASSO) was used for the feature screening and ranking of the predicted variables. The random forest algorithm and five-fold cross-validation for optimizing the model were selected to ensure the generalizability and precision.Results: There were 137 patients (mean [SD] age, 41.1 [16.8] years; 77 [58.8%] female) who had a good social functional prognosis. A lower PSP score, taking a mood stabilizer, a high total Positive and Negative Symptom Scale (PANSS) and PANSS general subscale score, unemployment, a hepatic injury with medication, comorbid cardiovascular disease and being male predicted poor PSP outcomes. The generalizability of the PSP predictive tool was estimated with the precision–recall curve (accuracy of 79.5%, negative predictive value of 92.6% and positive predictive value of 57.1%) and receiver operating characteristic curve (ROC) (specificity of 81.8% and sensitivity of 78.7%).Conclusion: The machine learning tool established using our current real-world data could assist in predicting PSP outcome by several clinical factors.Keywords: schizophrenia, atypical antipsychotics, social functional improvement, Personal and Social Performance, PSP
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spelling doaj.art-f9c04ab2d77f4a1c8421cf784bb07a182022-12-21T21:52:04ZengDove Medical PressNeuropsychiatric Disease and Treatment1178-20212021-03-01Volume 1784785763247A Random Forest Model for Predicting Social Functional Improvement in Chinese Patients with Schizophrenia After 3 Months of Atypical Antipsychotic Monopharmacy: A Cohort StudyLi YZhang LZhang YWen HHuang JShen YLi HYange Li,1 Lei Zhang,1 Yan Zhang,1 Hui Wen,1 Jingjing Huang,1,2 Yifeng Shen,1– 3 Huafang Li1– 3 1Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China; 2Shanghai Key Laboratory of Psychotic Disorders, Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, People’s Republic of China; 3Shanghai Clinical Research Center for Mental Health, Shanghai, People’s Republic of ChinaCorrespondence: Huafang LiShanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, 600, Wan Ping Nan Lu, Shanghai, 200030, People’s Republic of ChinaTel +86 21 34773122Fax +86-21-54240982Email lhlh_5@163.comPurpose: Impaired social functions contribute to the burden of schizophrenia patients and their families, but predictive tools of social functioning prognosis and specific factors are undefined in Chinese clinical practice. This article explores a machine learning tool to identify whether patients will achieve significant social functional improvement after 3 months of atypical antipsychotic monopharmacy and finds the defined risk factors using a multicenter clinical study.Patients and Methods: A multicenter study on atypical antipsychotic (AAP) treatment in Chinese patients with schizophrenia (SALT-C) was conducted from July 2011 to August 2018. Data from 550 patients with AAP monopharmacy from their baseline to their 3-month follow-up were used to establish machine learning tools after screening. The positive outcome was an increase in the Personal and Social Performance (PSP) scale score by ≥ 10 points. The predictors were a range of investigator-rated assessments on symptoms, functioning, the safety of AAPs and illness history. The Least Absolute Shrinkage and Selection Operator (LASSO) was used for the feature screening and ranking of the predicted variables. The random forest algorithm and five-fold cross-validation for optimizing the model were selected to ensure the generalizability and precision.Results: There were 137 patients (mean [SD] age, 41.1 [16.8] years; 77 [58.8%] female) who had a good social functional prognosis. A lower PSP score, taking a mood stabilizer, a high total Positive and Negative Symptom Scale (PANSS) and PANSS general subscale score, unemployment, a hepatic injury with medication, comorbid cardiovascular disease and being male predicted poor PSP outcomes. The generalizability of the PSP predictive tool was estimated with the precision–recall curve (accuracy of 79.5%, negative predictive value of 92.6% and positive predictive value of 57.1%) and receiver operating characteristic curve (ROC) (specificity of 81.8% and sensitivity of 78.7%).Conclusion: The machine learning tool established using our current real-world data could assist in predicting PSP outcome by several clinical factors.Keywords: schizophrenia, atypical antipsychotics, social functional improvement, Personal and Social Performance, PSPhttps://www.dovepress.com/a-random-forest-model-for-predicting-social-functional-improvement-in--peer-reviewed-article-NDTschizophreniaatypical antipsychoticssocial functional improvementpersonal and social performance (psp)
spellingShingle Li Y
Zhang L
Zhang Y
Wen H
Huang J
Shen Y
Li H
A Random Forest Model for Predicting Social Functional Improvement in Chinese Patients with Schizophrenia After 3 Months of Atypical Antipsychotic Monopharmacy: A Cohort Study
Neuropsychiatric Disease and Treatment
schizophrenia
atypical antipsychotics
social functional improvement
personal and social performance (psp)
title A Random Forest Model for Predicting Social Functional Improvement in Chinese Patients with Schizophrenia After 3 Months of Atypical Antipsychotic Monopharmacy: A Cohort Study
title_full A Random Forest Model for Predicting Social Functional Improvement in Chinese Patients with Schizophrenia After 3 Months of Atypical Antipsychotic Monopharmacy: A Cohort Study
title_fullStr A Random Forest Model for Predicting Social Functional Improvement in Chinese Patients with Schizophrenia After 3 Months of Atypical Antipsychotic Monopharmacy: A Cohort Study
title_full_unstemmed A Random Forest Model for Predicting Social Functional Improvement in Chinese Patients with Schizophrenia After 3 Months of Atypical Antipsychotic Monopharmacy: A Cohort Study
title_short A Random Forest Model for Predicting Social Functional Improvement in Chinese Patients with Schizophrenia After 3 Months of Atypical Antipsychotic Monopharmacy: A Cohort Study
title_sort random forest model for predicting social functional improvement in chinese patients with schizophrenia after 3 months of atypical antipsychotic monopharmacy a cohort study
topic schizophrenia
atypical antipsychotics
social functional improvement
personal and social performance (psp)
url https://www.dovepress.com/a-random-forest-model-for-predicting-social-functional-improvement-in--peer-reviewed-article-NDT
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