ArticleAmerican journal of translational research2025
Construction and validation of a predictive model for severe pneumonia risk using respiratory pathogen nucleic acid Ct values combined with host immune biomarkers.
Article in American journal of translational research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
objectivesWe developed a new predictive model to more accurately assess the risk of patients developing severe pneumonia (SP) after hospital admission.
methodsWe retrospectively analyzed patients with pneumonia admitted between June 2022 and May 2024. According to the 2019 American Thoracic Society/Infectious Diseases Society of America guideline, patients were classified into SP and non-severe pneumonia (NSP) groups. Basic clinical information at admission and laboratory results, including complete blood count, coagulation function, biochemical parameters, and bacterial co-infection, were collected. Quantitative real-time polymerase chain reaction (qRT-PCR) was used to determine the cycle threshold (Ct) values of respiratory pathogen nucleic acids to estimate the pathogen load. Host immune biomarkers were measured in fasting serum collected on the morning following the first positive pathogen detection.
resultsAmong 241 patients (NSP group=139, SP group=102), patients with SP showed significantly lower pathogen Ct values (influenza A virus [IVA]: 24.32 ± 4.56 vs. 28.45 ± 3.21,
conclusionsThis study demonstrats that a predictive model combining quantitative pathogen load with host immune-metabolic biomarkers can effectively predict the risk of severe pneumonia.
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