Does ingestion of cranberry juice reduce symptomatic urinary tract infections in older people in hospital? A double-blind, placebo-controlled trial.

Background: cranberry juice is often given to older people in hospital to prevent urinary tract infection (UTI), although there is little evidence to support its use.

Objective: to assess whether cranberry juice ingestion is effective in reducing UTIs in older people in hospital.

Design: randomised, placebo-controlled, double-blind trial.