Evidence map›Paper›PMID 34031075›Full record

ArticleBMJ case reports2021

IgG

Shu Hui Ng, Jing Shin Tay, Ee Ling Lai

Open access · greenAbstract readCase Reports
In one paragraph

Article in BMJ case reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.2field-weighted citation impact, top 50% 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

2 citing papers in PubMed, 1 citations in OpenAlex.

  1. IgG4-related spinal hypertrophic pachymeningitis: a systematic review.European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society · 2026
    Review
  2. 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 1 country.

Shu Hui NgInternal Medicine, Hospital Sultan Ismail, Johor Bharu, Malaysia.
Jing Shin TayInternal Medicine, Hospital Sultan Ismail, Johor Bharu, Malaysia.
Ee Ling LaiInternal Medicine, Hospital Sultan Ismail, Johor Bharu, Malaysia lai.eeling@yahoo.com.ORCID http://orcid.org/0000-0002-8039-4788
Sultan Ismail Specialist Hospital · MYTaiping Hospital · MY

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

IgG

Indexed as

Autoimmune DiseasesPhlebitisFibrosisHumansImmunoglobulin GMalePlasma CellsSteroidsImmunoglobulin GSteroidsconnective tissue diseaseimmunologyurology

Identifiers

PMID34031075
PMCPMC8149321
OpenAlexW3164113556

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.