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Peer Relationships Are a Direct Cause of the Adolescent Mental Health Crisis: Interpretable Machine Learning Analysis of 2 Large Cohort Studies

Peer Relationships Are a Direct Cause of the Adolescent Mental Health Crisis: Interpretable Machine Learning Analysis of 2 Large Cohort Studies

To obtain unadjusted associations between individual predictors and outcomes, we calculated linear models with each predictor as the only independent variable, based on data completed using K-nearest neighbors imputation (KNNImputer class of the scikit-learn toolbox for Python [29] with default parameters) and weighted with population sample weights.

Heiner Stuke, Robert Schlack, Michael Erhart, Anne Kaman, Ulrike Ravens-Sieberer, Christopher Irrgang

JMIR Public Health Surveill 2025;11:e60125

Pragmatic Risk Stratification Method to Identify Emergency Department Presentations for Alternative Care Service Pathways: Registry-Based Retrospective Study Over 5 Years

Pragmatic Risk Stratification Method to Identify Emergency Department Presentations for Alternative Care Service Pathways: Registry-Based Retrospective Study Over 5 Years

K-means clustering, an unsupervised machine learning approach, was used to group ICD-10 codes according to hospital admission outcomes. Each presentation was categorized by its primary diagnosis, with only one diagnosis analyzed per presentation. Admission risk was calculated for each ICD-10 code and grouped into clusters.

John Rong Hao Tay, Yohei Okada, Gayathri Devi Nadarajan, Fahad Javaid Siddiqui, Tomás Barry, Marcus Eng Hock Ong

J Med Internet Res 2025;27:e73758