Hospital visits and costs following outpatient treatment of CAP with levofloxacin or moxifloxacin
Abstract
BACKGROUND: Hospital admissions (inpatient and emergency room) are a major source of medical costs for community-acquired pneumonia (CAP) initially treated in the outpatient setting. Current CAP treatment guidelines do not differentiate between outpatient treatment with levofloxacin and moxifloxacin.
OBJECTIVE: Compare health care resource use and medical costs to payers for CAP outpatients initiating treatment with levofloxacin or moxifloxacin.
RESEARCH DESIGN AND METHODS: CAP episodes were identified in the PharMetrics database between 2Q04 and 2Q07 based on: pneumonia diagnosis, chest X-ray and treatment with levofloxacin or moxifloxacin. Subsequent 30-day risk of pneumonia-related hospital visits and 30-day health care costs to payers for levofloxacin vs. moxifloxacin treatment were estimated after adjusting for pre-treatment demographics, health care resource use and pneumonia-specific risk factors using propensity score and exact factor matching.
RESULTS: A total of 15,472 levofloxacin- and 6474 moxifloxacin-initiated CAP patients were identified. Among 6352 matched pairs, levofloxacin treatment was associated with a 35% reduction in the odds of pneumonia-related hospital visits (odds ratio = 0.65, P = 0.004), lower per-patient costs for pneumonia-related hospital visits (102 dollars vs. 210 dollars, P = 0.001), lower pneumonia-related total costs (medical services and prescription drugs, 363 dollars vs. 491 dollars, P < 0.001) and lower total costs (1308 dollars vs.…
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