CLABpredICU---AI-driven risk prediction for CLABSI in intensive care units based on clinical and biochemical...

Central line--associated bloodstream infections (CLABSI) are major causes of morbidity and mortality in intensive care units. This study aimed to develop an artificial intelligence-driven predictive model for CLABSI within 2 calendar days of central line insertion using routine biochemical parameters for early detection.

A retrospective analysis of adult intensive care unit patients with central lines was conducted. Demographic and biochemical parameters were collected. Feature selection using Recursive Feature Elimination identified key predictors. Four models---Extreme Gradient Boosting (XGBoost), logistic regression, support vector machine, and random forest---were trained and validated.

Among 234 patients, 39 were CLABSI-positive. Support vector machine demonstrated the highest predictive power (area under receiver operating characteristic curve = 0.91) and diagnostic odds ratio = 45.34. Seven key predictors were identified: prothrombin time days 1 and 2, international normalized ratio day 2, sodium day 1, potassium day 2, neutrophil-to-lymphocyte ratio day 1, and urea/creatinine ratio day 2. Decision curve analysis showed an estimated risk stratification at a 23% cutoff "https://clabpredicu.netlify.app/".

The developed artificial intelligence model shows strong potential for early CLABSI prediction using routine blood parameters. Future studies should focus on external validation and broader clinical application to enhance early infection prevention, particularly in resource-limited settings.