Evidence map›Paper›PMID 33303479›Full record

ArticleBMJ evidence-based medicine2020

Effect size reporting among prominent health journals: a case study of odds ratios.

Brian Chu, Michael Liu, Eric C Leas, Benjamin M Althouse, John W Ayers

Open access · hybridAbstract read
In one paragraph

Article in BMJ evidence-based medicine, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
0.5field-weighted citation impact, top 26% 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

6 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.

  1. Pooled it
  2. A Fall Prevention Feasibility Trial for People With HIV and Alcohol Use.OTJR : occupation, participation and health · 2025
    Trial
  3. Article
  4. Article
  5. Article
  6. Attachment networks in young adults.Frontiers in psychology · 2023
    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

5 authors at 4 institutions in 2 countries.

Brian ChuPerelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA brianchu2010@gmail.com.ORCID http://orcid.org/0000-0002-0803-5529
Michael LiuUniversity of Oxford, Oxford, UK.
Eric C LeasDepartment of Family Medicine and Public Health, Division of Health Policy, University of California San Diego, La Jolla, California, USA.
Benjamin M AlthouseEpidemiology, Institute for Disease Modeling, Bellevue, Washington, USA.
John W AyersDepartment of Medicine, Division of Infectious Diseases and Global Health, University of California San Diego, La Jolla, California, USA.
University of California San Diego · USBellevue Hospital Center · USUniversity of Oxford · GBUniversity of Pennsylvania · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe accuracy of statistical reporting that informs medical and public health practice has generated extensive debate, but no studies have evaluated the frequency or accuracy of effect size (the magnitude of change in outcome as a function of change in predictor) reporting in prominent health journals.

objectiveTo evaluate effect size reporting practices in prominent health journals using the case study of ORs.

designArticles published in the MAIN OUTCOMES AND MEASURES: We report prevalence of articles using ORs, reporting effect sizes from ORs (reporting the magnitude of change in outcome as a function of change in predictor) and reporting correct effect sizes.

resultsThe proportion of articles using ORs in the past decade declined in

conclusionsArticles that used ORs in prominent journals frequently omitted presenting the effect size of their predictor variables. When reported, the presented effect size was usually incorrect. When used, ORs should be paired with accurate effect size interpretations. New editorial and research reporting standards to improve effect size reporting and its accuracy should be considered.

Indexed as

clinical decision-makingevidence-based practicegeneral practicemethods

Identifiers

PMID33303479
PMCPMC8311093
OpenAlexW3112674236

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.