A comparison of levofloxacin and moxifloxacin use in hospitalized community-acquired pneumonia (CAP) patients in the US: focus on length of stay*
Abstract
OBJECTIVE: Length of stay (LOS) and hospitalization costs were compared among patients admitted for community-acquired pneumonia (CAP) and initially treated with either levofloxacin 750 mg intravenous (IV) or with moxifloxacin 400 mg IV. Hospital-related complications and relationship of LOS and comorbidities were descriptively examined. METHODS: A retrospective database study was conducted of adult patients admitted for CAP and given levofloxacin 750 mg IV or moxifloxacin 400 mg IV through the first 3 days of hospitalization, using the Premier Perspective comparative database. Cohorts were matched 1:1 by hospital geographic location, by coarse caliper propensity scores using all baseline covariates, and by Mahalanobis metric matching based on age and severity (All Patient Refined-Diagnosis-related Groups Severity of Illness (APR-DRG SOI) index). Comparisons between groups were further adjusted for characteristics that remained imbalanced after matching using generalized estimating equation methodology. RESULTS: The initial sample of 3868 patients (levofloxacin = 827; moxifloxacin = 3041) was reduced to 1594 (797 patients per treatment group) after matching. Analyses of matched cohorts showed that the mean hospital LOS was significantly shorter for patients treated with levofloxacin 750 mg IV than for those patients treated with moxifloxacin 400 mg IV (5.8 vs. 6.4 days, respectively; least squares mean difference = 0.54 days; p = 0.020). Hospitalization costs were also lower…
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