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. 2022 Jul 18:1-22.
doi: 10.1007/s11469-022-00868-0. Online ahead of print.

Application of Machine Learning Techniques to Help in the Feature Selection Related to Hospital Readmissions of Suicidal Behavior

Gema Castillo-Sánchez  1 , Mario Jojoa Acosta  2 , Begonya Garcia-Zapirain  2 , Isabel De la Torre  1 , Manuel Franco-Martín  3
Affiliations

Application of Machine Learning Techniques to Help in the Feature Selection Related to Hospital Readmissions of Suicidal Behavior

Gema Castillo-Sánchez et al. Int J Ment Health Addict. .

Abstract

Suicide was the main source of death from external causes in Spain in 2020, with 3,941 cases. The importance of identifying those mental disorders that influenced hospital readmissions will allow us to manage the health care of suicidal behavior. The feature selection of each hospital in this region was carried out by applying Machine learning (ML) and traditional statistical methods. The results of the characteristics that best explain the readmissions of each hospital after assessment by the psychiatry specialist are presented. Adjustment disorder, alcohol abuse, depressive syndrome, personality disorder, and dysthymic disorder were selected for this region. The most influential methods or characteristics associated with suicide were benzodiazepine poisoning, suicidal ideation, medication poisoning, antipsychotic poisoning, and suicide and/or self-harm by jumping. Suicidal behavior is a concern in our society, so the results are relevant for hospital management and decision-making for its prevention.

Keywords: Hospital; Machine learning; Mental disorder; Readmissions; Suicide prevention.

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Conflict of interest statement

Conflict of InterestThe authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Map of CYL with total numbers of records with suicide-related diagnoses between 2005 and 2015
Fig. 2
Fig. 2
Flow of inclusion and exclusion criteria: patient data associated with suicide-related diagnoses
Fig. 3
Fig. 3
Methods applied
Fig. 4
Fig. 4
Block diagram showing the creation of subunits based on Pearson and Spearman correlation coefficients
Fig. 5
Fig. 5
Bagging block or ML
See this image and copyright information in PMC

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