Evidence map›Paper›PMID 27275105›Full record

SynthesisWorld journal of gastroenterology2016

Contemporary meta-analysis of short-term probiotic consumption on gastrointestinal transit.

Larry E Miller, Angela K Zimmermann, Arthur C Ouwehand

Open access · hybridAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in World journal of gastroenterology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 3 pooled it
3.3field-weighted citation impact, top 8% of its field
1 · What the graph read from 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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

22 citing papers in PubMed, 3 syntheses or guidelines pooled it, 55 citations in OpenAlex.

  1. Guideline
  2. Pooled it
  3. Pooled it
  4. Frontiers in nutrition · 2026
    Trial
  5. Trial
  6. Trial
  7. Trial
  8. Review
  9. Article
  10. Review
  11. Review
  12. Review
  13. Microbiota in health and diseases.Signal transduction and targeted therapy · 2022
    Review
  14. Review
  15. Effects ofEvidence-based complementary and alternative medicine : eCAM · 2022
    Article
  16. Review
  17. Article
  18. Review
  19. Review
  20. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 2 institutions in 2 countries.

Larry E MillerLarry E Miller, Angela K Zimmermann, Miller Scientific Consulting, Inc., Asheville, NC 28803, United States.
Angela K ZimmermannLarry E Miller, Angela K Zimmermann, Miller Scientific Consulting, Inc., Asheville, NC 28803, United States.
Arthur C OuwehandLarry E Miller, Angela K Zimmermann, Miller Scientific Consulting, Inc., Asheville, NC 28803, United States.
DuPont (Finland) · FIFoster-Miller (United States) · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo determine the efficacy of probiotic supplementation on intestinal transit time (ITT) in adults and to identify factors that influence these outcomes.

methodsWe conducted a systematic review of randomized controlled trials of probiotic supplementation that measured ITT in adults. Study quality was assessed using the Jadad scale. A random effects meta-analysis was performed with standardized mean difference (SMD) of ITT between probiotic and control groups as the primary outcome. Meta-regression and subgroup analyses examined the impact of moderator variables on SMD of ITT.

resultsA total of 15 clinical trials with 17 treatment effects representing 675 subjects were included in this analysis. Probiotic supplementation was moderately efficacious in decreasing ITT compared to control, with an SMD of 0.38 (95%CI: 0.23-0.53, P < 0.001). Subgroup analyses demonstrated statistically greater reductions in ITT with probiotics in subjects with vs without constipation (SMD: 0.57 vs 0.22, P < 0.01) and in studies with high vs low study quality (SMD: 0.45 vs 0.00, P = 0.01). Constipation (R (2) = 38%, P < 0.01), higher study quality (R (2) = 31%, P = 0.01), older age (R (2) = 27%, P = 0.02), higher percentage of female subjects (R (2) = 26%, P = 0.02), and fewer probiotic strains (R (2) = 20%, P < 0.05) were predictive of decreased ITT with probiotics in meta-regression. Medium to large treatment effects were identified with B. lactis HN019 (SMD: 0.67, P < 0.001) and B. lactis DN-173 010 (SMD: 0.54, P < 0.01) while other probiotic strains yielded negligible reductions in ITT relative to control.

conclusionProbiotic supplementation is moderately efficacious for reducing ITT in adults. Probiotics were most efficacious in constipated subjects, when evaluated in high-quality studies, and with certain probiotic strains.

Indexed as

Gastrointestinal MicrobiomeGastrointestinal TransitConstipationGastrointestinal TractHumansProbioticsTreatment OutcomeConstipationGastrointestinalIntestinal transit timeMeta-analysisProbiotics

Identifiers

PMID27275105
PMCPMC4886388
OpenAlexW2415706382

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.