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. 2017 Sep 8;2017(9):CD010723. doi: 10.1002/14651858.CD010723.pub2

Summary of findings for the main comparison. Intravesical bacterial interference versus placebo for preventing urinary tract infection in people with neuropathic bladder.

Intravesical bacterial interference versus placebo for preventing urinary tract infection in people with neuropathic bladder
Patient or population: people with neuropathic bladder
 Setting: outpatient
 Intervention: intravesical bacterial interference
 Comparison: placebo
Outcomes Anticipated absolute effects* (95% CI) Relative effect
 (95% CI) No. of participants (studies) Quality of the evidence
 (GRADE)
Risk with placebo Risk with intravesical bacterial interference
Symptomatic UTI
 Follow‐up: mean 12 months 613 per 1,000 196 per 1,000
 (49 to 729) RR 0.32
 (0.08 to 1.19) 110 (3) ⊕⊝⊝⊝1 
 VERY LOW
GRADE Working Group grades of evidenceHigh quality: We are very confident that the true effect lies close to that of the estimate of the effect
 Moderate quality: We are moderately confident in the effect estimate: The true effect is likely to be close to the estimate of the effect, but there is a possibility that it is substantially different
 Low quality: Our confidence in the effect estimate is limited: The true effect may be substantially different from the estimate of the effect
 Very low quality: We have very little confidence in the effect estimate: The true effect is likely to be substantially different from the estimate of effect

1Risk of bias was assessed at high in most domains, with heterogeneity and small studies, suggesting that results overestimate intravesical bacterial interference versus placebo