Evidence map›Paper›PMID 37164466›Full record

SynthesisBMJ open2023

Association between bilirubin levels and risk of stroke: a systematic review and meta-analysis.

Gege Wang, Luyao Qiao, Zhenyu Tang, Siqi Zhou, Jun Min, Min Li

Abstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in BMJ open, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed, 1 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

8 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Review
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. 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

6 authors.

Gege WangDepartment of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
Luyao QiaoDepartment of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
Zhenyu TangDepartment of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
Siqi ZhouDepartment of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
Jun MinDepartment of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
Min LiDepartment of Neurology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China minli2012@sina.com.ORCID 0000-0002-9813-1206

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveTo evaluate the association between bilirubin levels and stroke risk.

designSystematic review and meta-analysis, reported in accordance with Meta-analysis Of Observational Studies in Epidemiology guidelines. DATA SOURCES: The PubMed, Embase, Cochrane Central Register of Controlled Trials and China National Knowledge Infrastructure Databases were searched from inception up to 27 February 2022. ELIGIBILITY CRITERIA: Cohort studies assessing the dose-response relationship between bilirubin levels and risk of stroke were eligible for inclusion. There were no language restrictions. DATA EXTRACTION AND SYNTHESIS: All data from eligible studies were collected and assessed by two independent investigators. We generated pooled relative risks (RRs) with 95% CIs. We used a restricted cubic spline model for the dose-response analyses. Subsequent subgroup analyses were conducted according to stroke outcomes, follow-up duration, geographical area and size of the cohort.

resultsNine articles including results from 11 cohort studies with 7835 cases of stroke and 263 596 participants met the inclusion criteria. The summarised RR of stroke comparing the highest and lowest bilirubin level was 0.85 (95% CI 0.72 to 0.99). The dose-response analysis indicated that a 15 µmol/L increment of bilirubin level was associated with an 18% lower risk of stroke (RR=0.82, 95% CI 0.67 to 0.99). For ischaemic stroke, the RR was 0.76 (95% CI 0.58 to 0.99). Significant publication bias was not detected.

conclusionsElevated bilirubin levels were associated with a decreased risk of stroke among adults. PROSPERO REGISTRATION NUMBER: CRD42017071497.

Indexed as

Brain IschemiaIschemic StrokeStrokeAdultBilirubinCohort StudiesHumansBilirubinNeurologyStrokeSTROKE MEDICINE

Identifiers

PMID37164466
PMCPMC10174027

What OpenQuestion holds

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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.