Prevalence of and risk factors for dysglycemia in patients receiving gatifloxacin and levofloxacin in an outpatient setting
Abstract
STUDY OBJECTIVES: To assess the prevalence of dysglycemia (hypoglycemia or hyperglycemia) associated with oral levofloxacin and gatifloxacin therapy in an outpatient setting, and to determine the characteristics of patients who developed dysglycemia while receiving either fluoroquinolone. DESIGN: Retrospective medical record review. SETTING: Outpatient clinic of a Veterans Affairs teaching hospital. PATIENTS: A total of 1573 patients who received oral levofloxacin (343 patients), gatifloxacin (589 patients), or azithromycin (as a control, 641 patients) between June 1, 2004, and May 31, 2006. MEASUREMENTS AND MAIN RESULTS: Dysglycemia occurred in 33 patients: 13 (2.2%), 9 (2.6%), and 11 (1.7%), respectively, of those in the gatifloxacin, levofloxacin, and azithromycin groups. Of 13 patients who experienced a hyperglycemic event, 11 (84.6%) had diabetes mellitus. After adjustment for confounding factors, neither levofloxacin nor gatifloxacin were associated with increased odds of developing a dysglycemic event compared with azithromycin. Multivariate analysis demonstrated that lack of downward dosage adjustment based on creatinine clearance (odds ratio [OR] 10.3, 95% confidence interval [CI] 3.8-27.6), presence of diabetes (OR 17.1, 95% CI 3.1-94.9), or treatment with insulin (OR 5.3, 95% CI 1.8-15.7) or sulfonylureas (OR 3.6, 95% CI 1.3-10.4) independently increased dysglycemia risk. Obesity (body mass index > or = 30 kg/m(2)) was independently protective (OR 0.22, 95% CI…
How strong is the evidence?
Evidence Hub reads this as a cohort study, done in people. Its evidence level is 3 of 5 (Moderate · trial / cohort / secondary analysis). Trials without a large randomized design, cohorts and secondary analyses give moderate evidence. Reported size: 1,573 participants or records.
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