Scientific article
Open access

Risk factors for treatment failure in women with uncomplicated lower urinary tract infection

Published inPloS one, vol. 16, no. 8, e0256464
Publication date2021-08-31
First online date2021-08-31

Given rising antibiotic resistance and increasing use of delayed prescription for uncomplicated lower urinary tract infections (UTI), patients at risk for treatment failure should be identified early. We assessed risk factors for clinical and microbiological failure in women with lower UTI. This case-control study nested within a randomized clinical trial included all women in the per-protocol population (PPP), those in the PPP with microbiologically confirmed UTI, and those in the PPP with UTI due to Escherichia coli. Cases were women who experienced clinical and/or microbiologic failure; controls were those who did not. Risk factors for failure were assessed using multivariate logistic regression. In the PPP, there were 152 clinical cases for 307 controls. Among 340 women with microbiologically confirmed UTI, 126 and 102 cases with clinical and microbiological failure were considered with, respectively, 214 and 220 controls. Age ≥52 years was independently associated with clinical (adjusted OR 3.01; 95%CI 1.84–4.98) and microbiologic failure (aOR 2.55; 95%CI 1.54–4.25); treatment with fosfomycin was associated with clinical failure (aOR 2.35; 95%CI 1.47–3.80). The association with age persisted among all women, and women with E. coli-related UTI. Diabetes was not an independent risk factor, nor were other comorbidities. Postmenopausal age emerged as an independent risk factor for both clinical and microbiological treatment failure in women with lower UTI and should be considered to define women at-risk for non-spontaneous remission, and thus for delayed antibiotic therapy; diabetes mellitus was not associated with failure.

  • Age Distribution
  • Bacteria / isolation & purification
  • Female
  • Humans
  • Middle Aged
  • Multivariate Analysis
  • Risk Factors
  • Treatment Failure
  • Urinary Tract Infections / epidemiology
  • Urinary Tract Infections / microbiology
Citation (ISO format)
MARTISCHANG, Romain et al. Risk factors for treatment failure in women with uncomplicated lower urinary tract infection. In: PloS one, 2021, vol. 16, n° 8, p. e0256464. doi: 10.1371/journal.pone.0256464
Main files (1)
Article (Published version)
ISSN of the journal1932-6203

Technical informations

Creation01/13/2022 10:03:00 AM
First validation01/13/2022 10:03:00 AM
Update time03/16/2023 2:41:13 AM
Status update03/16/2023 2:41:12 AM
Last indexation05/06/2024 9:57:59 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack