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Unveiling Usage Patterns and Explaining Usage of Symptom Checker Apps: Explorative Longitudinal Mixed Methods Study

Unveiling Usage Patterns and Explaining Usage of Symptom Checker Apps: Explorative Longitudinal Mixed Methods Study

The R package glmm Pen [21] was used to conduct the LASSO penalized GLMM, and unpenalized model parameters were derived using the R package lme4 [22]. Further explanation can be found in Multimedia Appendix 1 and Textbox 1. The model assessment was realized by using the Bayesian information criterion (BIC) scores of the models. If model 3 or 4 would be identified as best performing they were fit with a GLMM without regularization to derive parameter estimators, CI, and SE.

Anna-Jasmin Wetzel, Christine Preiser, Regina Müller, Stefanie Joos, Roland Koch, Tanja Henking, Hannah Haumann

J Med Internet Res 2024;26:e55161

Prediction of Age-Adjusted Mortality From Stroke in Japanese Prefectures: Ecological Study Using Search Engine Queries

Prediction of Age-Adjusted Mortality From Stroke in Japanese Prefectures: Ecological Study Using Search Engine Queries

Regression analysis using a generalized linear mixed model (GLMM) was performed because it was not possible to determine which queries were associated with age-adjusted mortality from stroke in prefectures in the random forest regression.

Kazuya Taira, Sumio Fujita

JMIR Form Res 2022;6(1):e27805