Impact of preceding respiratory viral infections on the clinical severity of patients with pneumococcal pneumonia

Young Kyung Yoon, Kyung Sook Yang, Jang Wook Sohn, Chang Kyu Lee, Min Ja Kim

    Research output: Contribution to journalArticlepeer-review

    7 Citations (Scopus)

    Abstract

    Background: This study aimed to investigate the impact of preceding respiratory viral infections (RVI) on the clinical severity of pneumococcal pneumonia patients. Methods: A retrospective observational study was conducted at a university hospital from January 2009 to March 2013. Study subjects included adults (aged ≥18 years) with pneumococcal pneumonia who had undergone laboratory tests for RVI. Multivariate logistic regression analysis was performed to identify risk factors associated with severe pneumococcal pneumonia, defined as severity with the Pneumonia Severity Index (PSI) score ≥91. Results: In total, 191 patients with pneumococcal pneumonia were included for analysis and stratified into 2 groups: the severe group with a PSI score ≥91 (n = 99) and the non-severe group with a PSI score <91 (n = 92). Preceding RVIs were detected in 48 patients, including influenza A virus (n = 20), influenza B virus (n = 4), parainfluenza viruses (n = 5), metapneumovirus (n = 4), rhinovirus (n = 4), respiratory syncytial viruses (n = 6), coronaviruses (n = 2), and mixed viral infections (n = 3). In the multivariate logistic regression analysis, preceding RVIs (odds ratio [OR], 2·49; 95% confidence interval [CI], 1·10-5·60), male sex (OR, 2·58; 95% CI, 1·24-5·38), old age (OR, 2·92; 95% CI, 1·37-6·24), hypoalbuminemia (OR, 3·26; 95% CI, 1·56-6·84)], and azotemia (OR, 2·24; 95% CI, 1·08-4·67) were significantly associated with severe pneumococcal pneumonia. Conclusion: This study suggests that preceding RVIs might be one of the risk factors affecting the clinical severity of pneumococcal pneumonia.

    Original languageEnglish
    Pages (from-to)549-556
    Number of pages8
    JournalInfluenza and other Respiratory Viruses
    Volume8
    Issue number5
    DOIs
    Publication statusPublished - 2014 Sept 1

    Bibliographical note

    Publisher Copyright:
    © 2014 The Authors. Influenza and Other Respiratory Viruses Published by John Wiley & Sons Ltd.

    Keywords

    • Clinical severity
    • Pneumonia
    • Respiratory viruses
    • Streptococcus pneumoniae

    ASJC Scopus subject areas

    • Epidemiology
    • Pulmonary and Respiratory Medicine
    • Public Health, Environmental and Occupational Health
    • Infectious Diseases

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