New directions in machine learning analyses of administrative data to prevent suicide-related behaviors

Am J Epidemiol. 2021 Apr 20:kwab111. doi: 10.1093/aje/kwab111. Online ahead of print.ABSTRACTThis issue contains a thoughtful report by Gradus et al. on a machine learning (ML) analysis of administrative variables to predict suicide attempts over two decades throughout Denmark. This is one of numerous recent studies that document strong concentration of risk of suicide-related behaviors (SRBs) among patients with high scores on ML models. The clear exposition of Gradus et al. provides an opportunity to review major challenges in developing, interpreting, and using such models: defining appropriate controls and time horizons, selecting comprehensive predictors, dealing with imbalanced outcomes, choosing classifiers, tuning hyperparameters, evaluating predictor variable importance, and evaluating operating characteristics. We close by calling for ML SRB research to move beyond merely demonstrating significant prediction, as this is by now well established, and to focus instead on using such models to target specific preventive interventions and to develop individualized treatment rules that can be used to help guide clinical decisions that address the growing problems of suicide attempts, suicide deaths, and other injuries and deaths in the same spectrum.PMID:33877322 | DOI:10.1093/aje/kwab111
Source: Am J Epidemiol - Category: Epidemiology Authors: Source Type: research

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