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Functional status and mortality prediction in community‐acquired pneumonia
Author(s) -
Jeon Kyeongman,
Yoo Hongseok,
Jeong ByeongHo,
Park Hye Yun,
Koh WonJung,
Suh Gee Young,
Guallar Eliseo
Publication year - 2017
Publication title -
respirology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.857
H-Index - 85
eISSN - 1440-1843
pISSN - 1323-7799
DOI - 10.1111/resp.13072
Subject(s) - medicine , pneumonia severity index , community acquired pneumonia , logistic regression , pneumonia , mortality rate , population , environmental health
Background and objective Poor functional status ( FS ) has been suggested as a poor prognostic factor in both pneumonia and severe pneumonia in elderly patients. However, it is still unclear whether FS is associated with outcomes and improves survival prediction in community‐acquired pneumonia ( CAP ) in the general population. Methods Data on hospitalized patients with CAP and FS , assessed by the Eastern Cooperative Oncology Group ( ECOG ) scale were prospectively collected between January 2008 and December 2012. The independent association of FS with 30‐day mortality in CAP patients was evaluated using multivariable logistic regression. Improvement in mortality prediction when FS was added to the CRB ‐65 (confusion, respiratory rate, blood pressure and age 65) score was evaluated for discrimination, reclassification and calibration. Results The 30‐day mortality of study participants ( n = 1526) was 10%. Mortality significantly increased with higher ECOG score ( P for trend <0.001). In multivariable analysis, ECOG ≥3 was strongly associated with 30‐day mortality (adjusted OR : 5.70; 95% CI : 3.82–8.50). Adding ECOG ≥3 significantly improved the discriminatory power of CRB ‐65. Reclassification indices also confirmed the improvement in discrimination ability when FS was combined with the CRB ‐65, with a categorized net reclassification index ( NRI ) of 0.561 (0.437–0.686), a continuous NRI of 0.858 (0.696–1.019) and a relative integrated discrimination improvement in the discrimination slope of 139.8 % (110.8–154.6). Conclusion FS predicted 30‐day mortality and improved discrimination and reclassification in consecutive CAP patients. Assessment of premorbid FS should be considered in mortality prediction in patients with CAP .