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Journal of Clinical Microbiology, March 1999, p. 753-757, Vol. 37, No. 3
0095-1137/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
Impact of Microbiology Practice on Cumulative
Prevalence of Respiratory Tract Bacteria in Patients with Cystic
Fibrosis
Michael R.
Shreve,1,*
Steven
Butler,2
Haley J.
Kaplowitz,2
Harvey R.
Rabin,3
Dennis
Stokes,4
Michael
Light,5
Warren E.
Regelmann1 for North American Scientific
Advisory Group and
Investigators for the Epidemiologic Study of
Cystic Fibrosis
University of Minnesota School of Medicine,
Minneapolis, Minnesota1; Genentech,
Inc., South San Francisco,2 and
University of California, San Diego, La
Jolla,5 California; Health Sciences
Center, University of Calgary, Calgary, Alberta,
Canada3; and Vanderbilt University
Medical Center, Nashville, Tennessee4
Received 14 September 1998/Accepted 17 November 1998
Investigators participating in the Epidemiologic Study of Cystic
Fibrosis project began to collect microbiological, pulmonary, and
nutritional data on cystic fibrosis (CF) patients at 180 North American
sites in 1994. Part of this study was a survey undertaken in August
1995 to determine microbiology laboratory practices with regard to
pulmonary specimens from CF patients. The survey included a section on
test ordering, completed by a site clinician, and a section on test
performance and reporting, completed by each site's clinical
microbiology laboratory staff. Seventy-nine percent of the surveys were
returned. There was intersite consistency of microbiology laboratory
practices in most cases. The majority of sites follow most of the CF
Foundation consensus conference recommendations. There were differences
in the frequency at which specimens for culture were obtained, in the
use of selective media for Staphylococcus aureus and
Haemophilus influenzae, and in the use of a prolonged
incubation for Burkholderia cepacia. These variations in
practice contribute to prevalence differences among sites and may
result in differences in clinical care.
*
Corresponding author. Mailing address: Department of
Pediatrics, Division of Pulmonary and Critical Care Medicine,
University of Minnesota School of Medicine, Box 742, 420 Delaware St.
S.E., Minneapolis, MN 55044. Phone: (612) 626-4440. Fax: (612)
624-0696. E-mail: shrev002{at}gold.tc.umn.edu.
Journal of Clinical Microbiology, March 1999, p. 753-757, Vol. 37, No. 3
0095-1137/99/$04.00+0
Copyright © 1999, American Society for Microbiology. All rights reserved.
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