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Prediction of in-hospital mortality of Clostriodiodes difficile infection using critical care database: a big data-driven, machine learning approach
Prediction of in-hospital mortality of Clostriodiodes difficile infection using critical care database: a big data-driven, machine learning approach
- Source :
- BMJ Open Gastroenterology, Vol 8, Iss 1 (2021)
- Publication Year :
- 2021
- Publisher :
- BMJ, 2021.
-
Abstract
- Research objectivesClostriodiodes difficile infection (CDI) is a major cause of healthcare-associated diarrhoea with high mortality. There is a lack of validated predictors for severe outcomes in CDI. The aim of this study is to derive and validate a clinical prediction tool for CDI in-hospital mortality using a large critical care database.MethodologyThe demographics, clinical parameters, laboratory results and mortality of CDI were extracted from the Medical Information Mart for Intensive Care-III (MIMIC-III) database. We subsequently trained three machine learning models: logistic regression (LR), random forest (RF) and gradient boosting machine (GBM) to predict in-hospital mortality. The individual performances of the models were compared against current severity scores (Clostridiodes difficile Associated Risk of Death Score (CARDS) and ATLAS (Age, Treatment with systemic antibiotics, leukocyte count, Albumin and Serum creatinine as a measure of renal function) by calculating area under receiver operating curve (AUROC). We identified factors associated with higher mortality risk in each model.Summary of resultsFrom 61 532 intensive care unit stays in the MIMIC-III database, there were 1315 CDI cases. The mortality rate for CDI in the study cohort was 18.33%. AUROC was 0.69 (95% CI, 0.60 to 0.76) for LR, 0.71 (95% CI, 0.62 to 0.77) for RF and 0.72 (95% CI, 0.64 to 0.78) for GBM, while previously AUROC was 0.57 (95% CI, 0.51 to 0.65) for CARDS and 0.63 (95% CI, 0.54 to 0.70) for ATLAS. Albumin, lactate and bicarbonate were significant mortality factors for all the models. Free calcium, potassium, white blood cell, urea, platelet and mean blood pressure were present in at least two of the three models.ConclusionOur machine learning derived CDI in-hospital mortality prediction model identified pertinent factors that can assist critical care clinicians in identifying patients at high risk of dying from CDI.
- Subjects :
- Creatinine
In hospital mortality
Database
Receiver operating characteristic
business.industry
Mortality rate
Gastroenterology
Renal function
RC799-869
Diseases of the digestive system. Gastroenterology
computer.software_genre
Machine learning
Logistic regression
Intensive care unit
law.invention
chemistry.chemical_compound
chemistry
law
Cohort
Medicine
Artificial intelligence
business
computer
Subjects
Details
- ISSN :
- 20544774
- Volume :
- 8
- Database :
- OpenAIRE
- Journal :
- BMJ Open Gastroenterology
- Accession number :
- edsair.doi.dedup.....3a19ccf56b807fdc8caee464cc02b1bc
- Full Text :
- https://doi.org/10.1136/bmjgast-2021-000761