Summary
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1 Sample Definition And Size
The study retrospectively collected data from 564 ICU patients undergoing invasive mechanical ventilation between June 2018 and December 2022 at a tertiary general hospital. After excluding 37 patients transferred to another hospital, 23 who discontinued treatment, and 17 with unplanned extubation, 487 patients remained. Among these, 323 (66.32%) experienced simple weaning and 164 (33.68%) experienced difficult weaning. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC11379950/?utm_source=openai))
2 Study Type
This was a retrospective cohort study. The dataset was split into a training set (70%) and a test set (30%) to develop and validate machine learning models. Five algorithms were compared: logistic regression, random forest, support vector machine, light gradient boosting machine, and extreme gradient boosting. ([pmc.ncbi.nlm.nih.gov](https://pmc.ncbi.nlm.nih.gov/articles/PMC11379950/?utm_source=openai))
3 Conflicts Of Interest
No conflicts of interest or potential sources of bias were declared in the available metadata. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/39242766/?utm_source=openai))
4 Results Summary
The random forest model demonstrated the best predictive performance among the five algorithms. On the test set, it achieved an area under the ROC curve (AUC) of 0.805, accuracy of 0.748, recall (sensitivity) of 0.888, specificity of 0.767, and F1 score of 0.825. ([pubmed.ncbi.nlm.nih.gov](https://pubmed.ncbi.nlm.nih.gov/39242766/?utm_source=openai))