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Folly Beach Library
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Village Library
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Clinical risk factors and blood protein biomarkers of 10-year pneumonia risk.
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- Author(s): Lee, Ming-Ming; Zuo, Yi; Steiling, Katrina; Mizgerd, Joseph P.; Kalesan, Bindu; Walkey, Allan J.
- Source:
PLoS ONE; 7/5/2024, Vol. 19 Issue 7, p1-14, 14p- Subject Terms:
- Source:
- Additional Information
- Abstract: Background: Chronic inflammation may increase susceptibility to pneumonia. Research question: To explore associations between clinical comorbidities, serum protein immunoassays, and long-term pneumonia risk. Methods: Framingham Heart Study Offspring Cohort participants ≥65 years were linked to their Centers for Medicare Services claims data. Clinical data and 88 serum protein immunoassays were evaluated for associations with 10-year incident pneumonia risk using Fine-Gray models for competing risks of death and least absolute shrinkage and selection operators for covariate selection. Results: We identified 1,370 participants with immunoassays and linkage to Medicare data. During 10 years of follow up, 428 (31%) participants had a pneumonia diagnosis. Chronic pulmonary disease [subdistribution hazard ratio (SHR) 1.87; 95% confidence interval (CI), 1.33–2.61], current smoking (SHR 1.79, CI 1.31–2.45), heart failure (SHR 1.74, CI 1.10–2.74), atrial fibrillation/flutter (SHR 1.43, CI 1.06–1.93), diabetes (SHR 1.36, CI 1.05–1.75), hospitalization within one year (SHR 1.34, CI 1.09–1.65), and age (SHR 1.06 per year, CI 1.04–1.08) were associated with pneumonia. Three baseline serum protein measurements were associated with pneumonia risk independent of measured clinical factors: growth differentiation factor 15 (SHR 1.32; CI 1.02–1.69), C-reactive protein (SHR 1.16, CI 1.06–1.27) and matrix metallopeptidase 8 (SHR 1.14, CI 1.01–1.30). Addition of C-reactive protein to the clinical model improved prediction (Akaike information criterion 4950 from 4960; C-statistic of 0.64 from 0.62). Conclusions: Clinical comorbidities and serum immunoassays were predictive of pneumonia risk. C-reactive protein, a routinely-available measure of inflammation, modestly improved pneumonia risk prediction over clinical factors. Our findings support the hypothesis that prior inflammation may increase the risk of pneumonia. [ABSTRACT FROM AUTHOR]
- Abstract: Copyright of PLoS ONE is the property of Public Library of Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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