Evidence map›Paper›PMID 32564121›Full record

SynthesisInternational urogynecology journal2021

Estrogen for the prevention of recurrent urinary tract infections in postmenopausal women: a meta-analysis of randomized controlled trials.

Ying-Yu Chen, Tsung-Hsien Su, Hui-Hsuan Lau

Abstract readMeta-Analysis
PubMed Publisher
In one paragraph

Synthesis in International urogynecology journal, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
2.2field-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, 1 synthesis or guideline pooled it, 48 citations in OpenAlex.

  1. Guideline
  2. Review
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Review
  15. Role of estrogen receptors in health and disease.Frontiers in endocrinology · 2022
    Review
  16. From Menopause to Neurodegeneration-Molecular Basis and Potential Therapy.International journal of molecular sciences · 2021
    Review
  17. Review
  18. Article
  19. Review
  20. How to help patients navigate genitourinary syndrome of menopause.Canadian family physician Medecin de famille canadien
    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 1 institution in 1 country.

Ying-Yu ChenDepartment of Medicine, Mackay Medical College, New Taipei, Taiwan.
Tsung-Hsien SuDepartment of Medicine, Mackay Medical College, New Taipei, Taiwan.
Hui-Hsuan LauDepartment of Medicine, Mackay Medical College, New Taipei, Taiwan. huihsuan1220@gmail.com.ORCID http://orcid.org/0000-0003-3620-9298
Mackay Memorial Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introduction and hypothesisRecurrent urinary tract infections (rUTIs) are commonly encountered in postmenopausal women. Optimal non-antimicrobial prophylaxis for rUTIs is an important health issue. The aim of this study was to evaluate the use of estrogen in the prevention of rUTIs versus placebo.

methodsEligible studies published up to December 2019 were retrieved through searches of MEDLINE, Embase, and Cochrane Central Register of Controlled Trials and Database of Systematic Reviews. We included randomized controlled trials of estrogen therapies versus placebo regarding the outcomes of preventing rUTIs. Changes in vaginal pH and estrogen-associated adverse events were also analyzed.

resultsEight studies including 4702 patients (2367 who received estrogen and 2335 who received placebo) were identified. Five studies including 1936 patients evaluated the use of vaginal estrogen, which resulted in a significant reduction in rUTIs (relative risk, 0.42; 95% CI, 0.30-0.59). Three studies including 2766 patients evaluated the outcomes of oral estrogen in the prevention of UTIs and showed no significant difference in the number of rUTIs compared to treatment with placebo (relative risk, 1.11; 95% CI, 0.92-1.35). Two studies reviewed changes in vaginal pH and showed a lower pH (mean difference, -1.81; 95% CI, -3.10--0.52) after vaginal estrogen therapy. Adverse events associated with vaginal estrogen were reported, including vaginal discomfort, irritation, burning, and itching. There was no significance increase in the vaginal estrogen group (relative risk, 3.06; 95% CI, 0.79-11.90).

conclusionsCompared with placebo, vaginal estrogen treatment could reduce the number of rUTIs and lower the vaginal pH in postmenopausal women.

Indexed as

PostmenopauseUrinary Tract InfectionsEstrogensFemaleHumansRandomized Controlled Trials as TopicEstrogensEstrogenPost-menopausePreventionRecurrent urinary tract infection

Identifiers

PMID32564121
OpenAlexW3036283385

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.