• Erika J Ernst, Michael E Ernst, James D Hoehns, and George R Bergus.
• College of Pharmacy, University of Iowa, Iowa City, IA, USA. erika-ernst@uiowa.edu
• Health Qual Life Out. 2005 Jul 27; 3: 45.

BackgroundAlthough acute cystitis is a common infection in women, the impact of this infection and its treatment on women's quality of life (QOL) has not been previously described.ObjectivesTo evaluate QOL in women treated for acute cystitis, and describe the relationship between QOL, clinical outcome and adverse events of each of the interventions used in the study.MethodsDesignRandomized, open-label, multicenter, treatment study.SettingTwo family medicine outpatient clinics in Iowa.PatientsOne-hundred-fifty-seven women with clinical signs and symptoms of acute uncomplicated cystitis.InterventionFifty-two patients received trimethoprim/sulfamethoxazole 1 double-strength tablet twice daily for 3 days, 54 patients received ciprofloxacin 250 mg twice daily for 3 days and 51 patients received nitrofurantoin 100 mg twice daily for 7 days.MeasurementsQOL was assessed at the time of enrollment and at 3, 7, 14 and 28 days after the initial visit. QOL was measured using a modified Quality of Well-Being scale, a validated, multi-attribute health scale. Clinical outcome was assessed by telephone interview on days 3, 7, 14 and 28 using a standardized questionnaire to assess resolution of symptoms, compliance with the prescribed regimen, and occurrence of adverse events.ResultsPatients experiencing a clinical cure had significantly better QOL at days 3 (p = 0.03), 7 (p < 0.001), and 14 (p = 0.02) compared to patients who failed treatment. While there was no difference in QOL by treatment assignment, patients experiencing an adverse event had lower QOL throughout the study period. Patients treated with ciprofloxacin appeared to experience adverse events at a higher rate (62%) compared to those treated with TMP/SMX (45%) and nitrofurantoin (49%), however the difference was not statistically significant (p = 0.2).ConclusionPatients experiencing cystitis have an increase in their QOL with treatment. Those experiencing clinical cure have greater improvement in QOL compared to patients fail therapy. While QOL is improved by treatment, those reporting adverse events have lower overall QOL compared to those who do not experience adverse events. This study is important in that it suggests that both cystitis and antibiotic treatment can affect QOL in a measurable way.

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