Predictors of Symptom Duration and Bacteriuria in Uncomplicated Urinary Tract Infection.

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    • Subject Terms:
      URINARY tract infection treatment; CONFIDENCE intervals; DIAGNOSTIC reagents & test kits; DRUG resistance in microorganisms; LEUCOCYTES; LONGITUDINAL method; PENICILLIN; URINALYSIS; BACTERIURIA; DISEASE duration; ODDS ratio
    • Subject Terms:
      NORWAY
    • Abstract:
      Objective: To identify baseline predictors of symptom duration after empirical treatment for uncomplicated urinary tract infection (UTI) and significant bacteriuria in a cohort of women treated for UTI. Design: Prospective single-centre cohort study. Setting: Outpatient clinic in Norway. Patients: From September 2010 to November 2011, 441 women aged 16-55 years with symptoms of uncomplicated UTI were included. Results: Dipstick findings of leukocyte esterase 1 + (incidence rate ratio (IRR) 1.93, 95% confidence interval (CI) 1.23-3.01, p < 0.01) and microbe resistant to mecillinam treatment (IRR 1.41, 95% CI 1.07-1.89, p = 0.02) predicted longer symptom duration. More pronounced symptoms did not predict longer symptom duration (IRR 1.18, 95% CI 0.94-1.46, p = 0.15) or significant bacteriuria (odds ratio [OR] 1.16, 95% CI 0.72-1.88, p = 0.54). Leukocyte esterase 2 + (OR 2.51, 95% CI 0.92-6.83, p = 0.07) or 3 + (OR 2.40, 95% CI 0.88-6.05, p = 0.09) and nitrite positive urine dipstick test (OR 3.22, 95% CI 1.58-7.01, p = <0.01) were associated with bacteriuria. Conclusion: More pronounced symptoms did not correlate with significant bacteriuria or symptom duration after empirical treatment for acute cystitis. One might reconsider the current practice of treating uncomplicated UTI based on symptoms alone. Key Points: Treatment strategies for milder infectious diseases must consider ways of reducing antibiotic consumption to decelerate the increase in antibiotic resistance. Our findings suggest that more emphasis should be put on urine dipstick results and bacteriological findings in the clinical setting. One might reconsider the current practice of treating uncomplicated UTIs based on symptoms alone. [ABSTRACT FROM AUTHOR]