Trial reportThe Journal of urology2008
Daily cranberry juice for the prevention of asymptomatic bacteriuria in pregnancy: a randomized, controlled pilot study.
Trial report in The Journal of urology, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers, 9 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
37 citing papers in PubMed, 9 syntheses or guidelines pooled it, 130 citations in OpenAlex.
- Cranberries for preventing urinary tract infections.The Cochrane database of systematic reviews · 2023Pooled it
- Cranberries for preventing urinary tract infections.The Cochrane database of systematic reviews · 2023Pooled it
- Pooled it
- Systematic review: bacterial colonisation of conduits and neobladders-when to test, watch, and treat.World journal of urology · 2020Pooled it
- Antibiotics for asymptomatic bacteriuria in pregnancy.The Cochrane database of systematic reviews · 2019Pooled it
- A systematic review of non-antibiotic measures for the prevention of urinary tract infections in pregnancy.BMC pregnancy and childbirth · 2018Pooled it
- Cranberries and Urinary Tract Infections: How Can the Same Evidence Lead to Conflicting Advice?Advances in nutrition (Bethesda, Md.) · 2016Pooled it
- Interventions for preventing recurrent urinary tract infection during pregnancy.The Cochrane database of systematic reviews · 2015Pooled it
- Cranberries for preventing urinary tract infections.The Cochrane database of systematic reviews · 2012Pooled it
- Efficacy of lactoferrin in preventing recurrent urinary tract infections in pregnant Egyptian women: a randomized controlled trial.BMC urology · 2025Trial
- Trial
- Recurrent urinary tract infection and urinary Escherichia coli in women ingesting cranberry juice daily: a randomized controlled trial.Mayo Clinic proceedings · 2012Trial
- Cranberry juice fails to prevent recurrent urinary tract infection: results from a randomized placebo-controlled trial.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2011Trial
- Exploring Non-antibiotic Interventions for Preventing Urinary Tract Infections During Pregnancy: A Systematic Review.Cureus · 2025Review
- Diagnostic and treatment patterns in urinary and genital tract infections: insights from a referral clinic in Beirut, Lebanon.World journal of urology · 2024Article
- Review
- Electrodialysis Processes an Answer to Industrial Sustainability: Toward the Concept of Eco-Circular Economy?-A Review.Membranes · 2023Review
- Effectiveness of herbal medicines to prevent and control symptoms of urinary tract infections and to reduce antibiotic use: A literature review.Integrative medicine research · 2022Review
- Examination of Complementary Medicine for Treating Urinary Tract Infections Among Pregnant Women and Children.Frontiers in pharmacology · 2022Review
- The Concentration of Organic Acids in Cranberry Juice Modulates the Gut Microbiota in Mice.International journal of molecular sciences · 2021Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
purposeWe compared the effects of daily cranberry juice cocktail to those of placebo during pregnancy on asymptomatic bacteriuria and symptomatic urinary tract infections. MATERIALS AND
methodsA total of 188 women were randomized to cranberry or placebo in 3 treatment arms of A-cranberry 3 times daily (58), B-cranberry at breakfast then placebo at lunch and dinner (67), and C-placebo 3 times daily (63). After 27.7% (52 of 188) of the subjects were enrolled in the study the dosing regimens were changed to twice daily dosing to improve compliance.
resultsThere were 27 urinary tract infections in 18 subjects in this cohort, with 6 in 4 group A subjects, 10 in 7 group B subjects and 11 in 7 group C subjects (p = 0.71). There was a 57% and 41% reduction in the frequency of asymptomatic bacteriuria and all urinary tract infections, respectively, in the multiple daily dosing group. However, this study was not sufficiently powered at the alpha 0.05 level (CI 0.14-1.39 and 0.22-1.60, respectively, incidence rate ratios). Of 188 subjects 73 (38.8%) withdrew, most for gastrointestinal upset.
conclusionsThese data suggest there may be a protective effect of cranberry ingestion against asymptomatic bacteriuria and symptomatic urinary tract infections in pregnancy. Further studies are planned to evaluate this effect.
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What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.