Identification of clinical risk factors for nosocomial pneumococcal bacteremia

Jeff B Rubins, Siu Po Cheung, Paul Carson, Hanna E Bloomfield, Edward N. Janoff

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Clinical risks for nosocomial pneumococcal bacteremia (NPB) have been analyzed previously in case series, a study design inadequate for this purpose. Therefore, we performed a case-control study of NPB, pairing each of 37 cases identified retrospectively at the Minneapolis Veterans Affairs Medical Center from the period of 1984-1994 with four or five hospitalized controls. Comorbidities identified at the time of admission that were significantly associated with NPB on univariate and multivariate analysis included respiratory or hematologic malignancy, anemia, chronic obstructive pulmonary disease, and coronary artery disease. All characteristic symptoms and signs of pneumococcal infection were significantly more common in cases than in controls. NPB was strongly associated with death within 7 days of the index blood culture date, and the mortality rate among cases was 40.5%, compared with 1.2% among nonbacteremic controls (P < .00001). We conclude that NPB is a highly lethal infection that is associated with distinct but identifiable clinical risks, symptoms, and signs.

Original languageEnglish (US)
Pages (from-to)178-183
Number of pages6
JournalClinical Infectious Diseases
Volume29
Issue number1
DOIs
StatePublished - 1999

Bibliographical note

Funding Information:
Received 20 November 1998; revised 12 March 1999. Financial support: Department of Veterans Affairs Research Service and National Institutes of Health (grants AI042240 to J.B.R. and RO1 39445 and HL 57880 to E.N.J.). Reprints or correspondence: Dr. Jeff Rubins, Pulmonary (111N), Veterans Affairs Medical Center, One Veterans Drive, Minneapolis, Minnesota 55417 ([email protected]).

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