Evidence map›Paper›PMID 29340247›Full record

ArticlePeerJ2018

Weekend effect in upper gastrointestinal bleeding: a systematic review and meta-analysis.

Pei-Ching Shih, Shu-Jung Liu, Sung-Tse Li, Ai-Chen Chiu, Po-Chuan Wang, Lawrence Yu-Min Liu

Abstract read
In one paragraph

Article in PeerJ, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
–field-weighted citation impact
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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it.

  1. Pooled it
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  3. Observational
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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

6 authors.

Pei-Ching ShihDepartment of Family Medicine, Hsinchu MacKay Memorial Hospital, Hsinchu City, Taiwan.
Shu-Jung LiuMedical Library, Tamshui MacKay Memorial Hospital, New Taipei City, Taiwan.
Sung-Tse LiDepartment of Pediatrics, Hsinchu MacKay Memorial Hospital, Hsinchu City, Taiwan.
Ai-Chen ChiuDepartment of Family Medicine, Hsinchu MacKay Memorial Hospital, Hsinchu City, Taiwan.
Po-Chuan WangDivision of Gastroenterology, Department of Internal Medicine, Hsinchu MacKay Memorial Hospital, Hsinchu City, Taiwan.
Lawrence Yu-Min LiuDivision of Cardiology, Department of Internal Medicine, Hsinchu MacKay Memorial Hospital, Hsinchu City, Taiwan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimTo perform a systematic review and meta-analysis of the weekend effect on the mortality of patients with upper gastrointestinal bleeding(UGIB).

methodsThe review protocol has been registered in the PROSPERO International Prospective Register of Systematic Reviews (registration number: CRD42017073313) and was written according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement. We conducted a search of the PUBMED, COCHRANE, EMBASE and CINAHL databases from inception to August 2017. All observational studies comparing mortality between UGIB patients with weekend versus weekday admissions were included. Articles that were published only in abstract form or not published in a peer-reviewed journal were excluded. The quality of articles was assessed using the Newcastle-Ottawa Scale. We pooled results from the articles using random-effect models. Heterogeneity was evaluated by the chi-square-based

resultsEighteen observational cohort studies involving 1,232,083 study patients were included. Weekend admission was associated with significantly higher 30-day or in-hospital mortality in all studies (OR = 1.12, 95% CI [1.07-1.17],

conclusionsThe weekend effect is associated with increased mortality of UGIB patients, particularly in non-variceal bleeding. The timing of endoscopic intervention might be a factor that influences mortality of UGIB patients.

Indexed as

Endoscopic interventionMeta-analysisMortalitySystematic reviewUpper gastrointestinal bleedingWeekend effect

Identifiers

PMID29340247
PMCPMC5768163

What OpenQuestion holds

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Registered trials

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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.