Evidence map›Paper›PMID 35039521›Full record

ArticleNature communications2022

Microbiome differential abundance methods produce different results across 38 datasets.

Jacob T Nearing, Gavin M Douglas, Molly G Hayes, Jocelyn MacDonald, Dhwani K Desai, Nicole Allward, Casey M A Jones, Robyn J Wright, Akhilesh S Dhanani, André M Comeau and 1 more

Erratum issuedAbstract read
In one paragraph

Article in Nature communications, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 615 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
615citing 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

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

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555 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

11 authors.

Jacob T Nearing *Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada. jacob.nearing@dal.ca.ORCID http://orcid.org/0000-0002-2261-034X
Gavin M Douglas *Department of Microbiology and Immunology, Dalhousie University, Halifax, NS, Canada.
Molly G HayesDepartment of Mathematics and Statistics, Dalhousie University, Halifax, NS, Canada.ORCID http://orcid.org/0000-0003-3565-535X
Jocelyn MacDonaldDepartment of Computer Science, Dalhousie University, Halifax, NS, Canada.
Dhwani K DesaiIntegrated Microbiome Resource, Dalhousie University, Halifax, NS, Canada.
Nicole AllwardDepartment of Civil and Resource Engineering, Dalhousie University, Halifax, NS, Canada.
Casey M A JonesDepartment of Pharmacology, Dalhousie University, Halifax, NS, Canada.
Robyn J WrightDepartment of Pharmacology, Dalhousie University, Halifax, NS, Canada.
Akhilesh S DhananiIntegrated Microbiome Resource, Dalhousie University, Halifax, NS, Canada.ORCID http://orcid.org/0000-0002-4204-0153
André M ComeauIntegrated Microbiome Resource, Dalhousie University, Halifax, NS, Canada.ORCID http://orcid.org/0000-0001-7066-7239
Morgan G I LangilleIntegrated Microbiome Resource, Dalhousie University, Halifax, NS, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Identifying differentially abundant microbes is a common goal of microbiome studies. Multiple methods are used interchangeably for this purpose in the literature. Yet, there are few large-scale studies systematically exploring the appropriateness of using these tools interchangeably, and the scale and significance of the differences between them. Here, we compare the performance of 14 differential abundance testing methods on 38 16S rRNA gene datasets with two sample groups. We test for differences in amplicon sequence variants and operational taxonomic units (ASVs) between these groups. Our findings confirm that these tools identified drastically different numbers and sets of significant ASVs, and that results depend on data pre-processing. For many tools the number of features identified correlate with aspects of the data, such as sample size, sequencing depth, and effect size of community differences. ALDEx2 and ANCOM-II produce the most consistent results across studies and agree best with the intersect of results from different approaches. Nevertheless, we recommend that researchers should use a consensus approach based on multiple differential abundance methods to help ensure robust biological interpretations.

Indexed as

Databases, GeneticCluster AnalysisComputer SimulationDiarrheaGenetic VariationHumansMicrobiotaPhylogenySequence Analysis, DNA

Identifiers

PMID35039521
PMCPMC8763921

What OpenQuestion holds

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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.