Bacterial Vaccines for the Management of Recurrent Urinary Tract Infections: A Systematic Review and Meta-analysis
Abstract
BACKGROUND AND OBJECTIVE
Several bacterial immunisations have been developed to reduce the socioeconomic burden of urinary tract infections (UTIs) and the use of prophylactic antibiotics in the management of recurrent UTIs (rUTIs). This systematic review evaluates the effectiveness of vaccinations in preventing rUTIs.
METHODS
Medline, Embase, and Web of Science were searched from inception to December 2023. Data were collected from cohort studies with a comparator arm and randomised controlled trials (RCTs) investigating vaccination efficacy in adult rUTI patients according to predefined selection criteria (PROSPERO registration: CRD42022356662). A pooled analysis took place for RCTs, with a subgroup analysis for vaccine types and booster regimens. Other studies were synthesised narratively. The risk of bias was assessed using Cochrane Risk-of-Bias tools. The Grading of Recommendations, Assessment, Development, and Evaluations framework evaluated the quality of evidence.
KEY FINDINGS AND LIMITATIONS
Fourteen comparative studies were selected, including 2822 patients across five vaccination types. The pooled risk ratio of eight placebo-controlled studies of the percentage of patients UTI free in the short term (6-12 mo) was 1.52 (95% confidence interval [CI] 1.05-2.20) with a number needed to treat of 6.45 (95% CI 2.80-64.80). There is substantial heterogeneity and a slight risk of a publication bias.
CONCLUSIONS AND CLINICAL IMPLICATIONS
There is limited evidence to suggest…
How strong is the evidence?
Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid. Reported size: 2,822 participants or records.
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