Increased fluid intake for the prevention of urinary tract infection in adults and children in all settings: A systematic review
Abstract
BACKGROUND
Non-antibiotic interventions for urinary tract infection (UTI) prevention have been investigated as a strategy to reduce antibiotic prescribing for UTI and subsequent antibiotic resistance. Increased hydration is widely advocated for preventing UTI; however, evidence for its effectiveness is unknown.
AIM
To systematically review the published literature on the effectiveness of increased fluid intake as a preventive intervention for UTI in adults and children in any setting.
METHODS
Five electronic databases were searched from inception to February 2019 to identify published randomized controlled trials (RCT) and quasi-experimental studies evaluating the effectiveness of high (≥1.5 litres/24 hours) versus normal/low (<1.5 litres/24 hours) fluid intake for UTI prevention. The outcome was UTI incidence. Risk of bias was assessed using the Cochrane Collaboration's tool. Due to the small number of studies identified, meta- analysis was not possible. Hence a narrative synthesis was undertaken.
FINDINGS
Of the 2822 potentially relevant papers, two were eligible for inclusion: a RCT (individual randomization) and a cluster RCT. Both studies differed in regards to participants, setting, sample size, UTI definition and intervention. The RCT was assessed as having a low risk of bias while the cluster RCT had a high risk of bias. Only the RCT, which included healthy premenopausal women visiting primary care clinics, demonstrated statistical significance for the effect of high…
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