期刊
COMPUTERS IN BIOLOGY AND MEDICINE
卷 146, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compbiomed.2022.105621
关键词
Urinary tract infection; Clinical decision support; Semi-supervised learning; Ensemble learning; RESSEL; Antibiotic stewardship
Urinalysis has low specificity and may lead to unnecessary antibiotic treatment and antibiotic resistance. By combining urinalysis results with other parameters, UTI can be effectively predicted. The developed CDSS system is more accurate in predicting UTI than urinalysis or urine culture.
Urinary Tract Infections (UTIs) are among the most frequently occurring infections in the hospital. Urinalysis and urine culture are the main tools used for diagnosis. Whereas urinalysis is sufficiently sensitive for detecting UTI, it has a relatively low specificity, leading to unnecessary treatment with antibiotics and the risk of increasing antibiotic resistance. We performed an evaluation of the current diagnostic process with an expert-based label for UTI as outcome, retrospectively established using data from the Electronic Health Records. We found that the combination of urinalysis results with the Gram stain and other readily available parameters can be used effectively for predicting UTI. Based on the obtained information, we engineered a clinical decision support system (CDSS) using the reliable semi-supervised ensemble learning (RESSEL) method, and found it to be more accurate than urinalysis or the urine culture for prediction of UTI. The CDSS provides clinicians with this prediction within hours of ordering a culture and thereby enables them to hold off on prematurely prescribing antibiotics for UTI while awaiting the culture results.
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