Evidence map›Paper›PMID 29404674›Full record

SynthesisWorld journal of urology2018

Chronic urinary tract infection and bladder carcinoma risk: a meta-analysis of case-control and cohort studies.

Saeed Akhtar, Ahmad Al-Shammari, Jarrah Al-Abkal

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in World journal of urology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

20 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. More than an infection: the ecological puzzle of recurrent urinary tract infections.Frontiers in cellular and infection microbiology · 2026
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Article
  14. Microbiome in Bladder Cancer: A Systematic Review.Diagnostics (Basel, Switzerland) · 2022
    Review
  15. Article
  16. Article
  17. Urinary Microbiome: Yin and Yang of the Urinary Tract.Frontiers in cellular and infection microbiology · 2021
    Review
  18. Article
  19. Article
  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 3 institutions in 1 country.

Saeed AkhtarDepartment of Community Medicine and Behavioural Sciences, Faculty of Medicine, University of Kuwait, PO Box 24923, Safat, 13110, Kuwait. saeed.akhtar@hsc.edu.kw.ORCID http://orcid.org/0000-0002-1261-788X
Ahmad Al-ShammariDepartment of Surgery, Section of Urology, Al-Adan Hospital, PO Box 288, Sabah Al Salem, 44403, Kuwait.
Jarrah Al-AbkalDepartment of Surgery, Farwaniya Hospital, PO Box 33978, Al Rawdha, 7346, Kuwait.
Adan Hospital · KWFarwaniya Hospital · KWKuwait University · KW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis meta-analysis of published case-control and cohort studies sought to quantify the magnitude and direction of association between chronic UTI (defined as the infection of the urinary tract that either does not respond to treatment or keeps recurring) and risk of bladder carcinoma (BCa) (i.e., including mainly urothelial carcinoma, squamous cell carcinoma or adenocarcinoma).

methodsA literature search was conducted using Medline, Embase, Ovid, Web of Science, Science Direct and Cochrane Library, which was supplemented with manual search of reference lists of the identified articles. Case-control and cohort studies examining UTI as a predictor of BCa risk published through June 2016 were eligible. Using random-effects models, odds ratios (OR) or relative risks (RR) from eligible studies were combined to synthesize summary effect estimates. The included studies were assessed for methodological quality and potential publication bias. Heterogeneity by study characteristics was examined by sub-group and meta-regression analyses.

resultsEighteen case-control and three cohort studies published between 1963 and 2016 were eligible. Random-effects models showed that UTI was significantly associated with an increased BCa risk both in case-control studies (summary OR

conclusionsChronic UTI was significantly and independently associated with an increased BCa risk. However, due to the presence of high between-study heterogeneity and inconsistent patterns of adjusted confounding effects, more data are needed to clarify the role of chronic UTI in causation of BCa and if established, prompt and effective treatment of UTI may minimize a substantial proportion of BCa risk.

Indexed as

AdenocarcinomaCarcinoma, Squamous CellCarcinoma, Transitional CellCase-Control StudiesCohort StudiesFemaleHumansMaleNeoplasm Recurrence, LocalRecurrenceRegression AnalysisRetrospective StudiesUrinary Bladder NeoplasmsUrinary Tract InfectionsBladder carcinomaCase–control studiesChronic urinary tract infectionCohort studiesMeta-analysis

Identifiers

PMID29404674
OpenAlexW2785510393

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.