Evidence map›Paper›PMID 32588070›Full record

ArticleNaunyn-Schmiedeberg's archives of pharmacology2020

Choice of y-axis can mislead readers.

Betül R Erdogan, Jan Vollert, Martin C Michel

Abstract read
In one paragraph

Article in Naunyn-Schmiedeberg's archives of pharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–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

4 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. 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.

Betül R ErdoganDepartment of Pharmacology, Faculty of Pharmacy, Ankara University, Ankara, Turkey.
Jan VollertPain Research, Department of Surgery and Cancer, Imperial College London, London, UK.
Martin C MichelDepartment of Pharmacology, Johannes Gutenberg University, Mainz, Germany. marmiche@uni-mainz.de.ORCID 0000-0003-4161-8467

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Using two examples from the non-scientific literature, we show how choice of unit of measure and scaling of y-axis can caused a biased perception of data, a phenomenon we propose to call perception bias. We recommend to pre-specify unit of measure or how it will be determined, whether outcome variables will be shown as absolute or relative/normalized changes, and to typically start y-axis at 0 for ratio variables.

Indexed as

Biomedical ResearchComputer GraphicsAnimalsBiasHumansReproducibility of ResultsBiasPerceptionPre-specificationReproducibility

Identifiers

PMID32588070
PMCPMC7419489

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.