Klaudia Cios1, Bevin Cohen2, Lynne M Quittell3, Jianfang Liu4, Elaine L Larson5. 1. Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY. 2. School of Nursing, Columbia University, New York, NY. Electronic address: bac2116@columbia.edu. 3. Department of Pediatrics, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY. 4. School of Nursing, Columbia University, New York, NY. 5. Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY; School of Nursing, Columbia University, New York, NY.
Abstract
BACKGROUND: This study aimed to examine the association between colonizing respiratory tract organism and frequency, duration, and time between subsequent hospitalizations among hospitalized patients with cystic fibrosis (CF). METHODS: This retrospective cohort study of 312 CF patients from 2 New York City hospitals (2006-2016) examined the effects of colonization with Pseudomonas aeruginosa, methicillin-susceptible Staphylococcus aureus (MSSA) or methicillin-resistant S aureus (MRSA), co-colonization on incidence of hospitalization, time to next hospitalization, and total length of stay (LOS). RESULTS: Annual rate of subsequent hospitalizations was highest in patients with P aeruginosa: adjusted incidence rate ratios (aIRRs) were 2.75 (95% confidence interval [CI], 1.72-4.41) for P aeruginosa versus MSSA, 2.57 (95% CI, 1.52-4.31) for co-colonization versus MSSA, and 1.77 (95% CI, 1.04-3.01) for P aeruginosa versus MRSA. Time to readmission was shortest for P aeruginosa: aIRRs were 1.75 (95% CI, 1.05-2.94) for MRSA versus P aeruginosa, 1.64 (95% CI, 1.03-2.59) for MSSA versus P aeruginosa, and 1.61 (95% CI, 1.04-2.47) for co-colonization versus P aeruginosa. LOS was longest for P aeruginosa: aIRRs were 3.41 (95% CI, 2.19-5.32) for P aeruginosa versus MSSA, 1.66 (95% CI, 1.01-2.75) for co-colonization versus MSSA, 2.50 (95% CI, 1.58-3.93) for P aeruginosa versus MRSA, and 2.05 (95% CI, 1.32-3.18) for P aeruginosa versus co-colonization. CONCLUSIONS: CF patients with P aeruginosa alone experienced more hospitalizations, longer LOS, and shorter time to readmission versus patients with S aureus or both organisms.
BACKGROUND: This study aimed to examine the association between colonizing respiratory tract organism and frequency, duration, and time between subsequent hospitalizations among hospitalized patients with cystic fibrosis (CF). METHODS: This retrospective cohort study of 312 CFpatients from 2 New York City hospitals (2006-2016) examined the effects of colonization with Pseudomonas aeruginosa, methicillin-susceptible Staphylococcus aureus (MSSA) or methicillin-resistant S aureus (MRSA), co-colonization on incidence of hospitalization, time to next hospitalization, and total length of stay (LOS). RESULTS: Annual rate of subsequent hospitalizations was highest in patients with P aeruginosa: adjusted incidence rate ratios (aIRRs) were 2.75 (95% confidence interval [CI], 1.72-4.41) for P aeruginosa versus MSSA, 2.57 (95% CI, 1.52-4.31) for co-colonization versus MSSA, and 1.77 (95% CI, 1.04-3.01) for P aeruginosa versus MRSA. Time to readmission was shortest for P aeruginosa: aIRRs were 1.75 (95% CI, 1.05-2.94) for MRSA versus P aeruginosa, 1.64 (95% CI, 1.03-2.59) for MSSA versus P aeruginosa, and 1.61 (95% CI, 1.04-2.47) for co-colonization versus P aeruginosa. LOS was longest for P aeruginosa: aIRRs were 3.41 (95% CI, 2.19-5.32) for P aeruginosa versus MSSA, 1.66 (95% CI, 1.01-2.75) for co-colonization versus MSSA, 2.50 (95% CI, 1.58-3.93) for P aeruginosa versus MRSA, and 2.05 (95% CI, 1.32-3.18) for P aeruginosa versus co-colonization. CONCLUSIONS:CFpatients with P aeruginosa alone experienced more hospitalizations, longer LOS, and shorter time to readmission versus patients with S aureus or both organisms.
Authors: Paul Briaud; Sylvère Bastien; Laura Camus; Marie Boyadjian; Philippe Reix; Catherine Mainguy; François Vandenesch; Anne Doléans-Jordheim; Karen Moreau Journal: Front Cell Infect Microbiol Date: 2020-06-03 Impact factor: 5.293