Evidence map›Paper›PMID 33209304›Full record

ArticleEvolution, medicine, and public health2020

Lifetime cancer prevalence and life history traits in mammals.

Amy M Boddy, Lisa M Abegglen, Allan P Pessier, Athena Aktipis, Joshua D Schiffman, Carlo C Maley, Carmel Witte

Open access · goldAbstract read
In one paragraph

Article in Evolution, medicine, and public health, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 56 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
56citing papers in PubMed, 1 pooled it
20.5field-weighted citation impact, top 1% 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

56 citing papers in PubMed, 1 synthesis or guideline pooled it, 94 citations in OpenAlex.

  1. Pooled it
  2. Evolutionary study of oncogenes and tumor suppressor genes in breast carcinoma.Journal of Taibah University Medical Sciences · 2026
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  12. Divergent evolutionary dynamics of benign and malignant tumors.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  13. Harmonized nonhuman cancer database.bioRxiv : the preprint server for biology · 2025
    Article
  14. Article
  15. Review
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  19. Reply to Compton et al.: Paradoxical misunderstanding.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  20. 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

7 authors at 5 institutions in 1 country.

Amy M BoddyDepartment of Anthropology, University of California, Santa Barbara, CA, USA.
Lisa M AbegglenDepartment of Pediatrics and Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.
Allan P PessierWashington Animal Disease Diagnostic Laboratory, Washington State University, Pullman, WA, USA.
Athena AktipisDepartment of Psychology, Arizona State University, Tempe, AZ.
Joshua D SchiffmanDepartment of Pediatrics and Huntsman Cancer Institute, University of Utah, Salt Lake City, UT, USA.
Carlo C MaleyArizona Cancer Evolution Center, Biodesign Institute, Arizona State University, Tempe, AZ, USA.ORCID 0000-0002-0745-7076
Carmel WitteInstitute for Conservation Research, San Diego Zoo Global, CA, USA.
Arizona State University · USUniversity of Utah · USUniversity of California, Santa Barbara · USWashington State University · USZoological Society of San Diego · US

Funding

PHYLOGENIES of Barrett's Esophagus LineagesP01CA091955 · NCI · FRED HUTCHINSON CANCER RESEARCH CENTER · PI GRADY, WILLIAM MALLORY · 2002 to 2019
$35.9M
Molecular, Cellular and Tissue Characterization UnitU2CCA233254 · NCI · DUKE UNIVERSITY · PI HWANG, E.SHELLEY · 2018 to 2023
$11.4M
The Role of the Microbiome in Cancer Suppression and Susceptibility Across SpeciesU54CA217376 · NCI · ARIZONA STATE UNIVERSITY-TEMPE CAMPUS · PI MALEY, CARLO · 2018 to 2022
$8.6M
Modeling Neoplastic Progression in Barrett's Esophagus - Renewal -2R01CA140657 · NCI · WISTAR INSTITUTE · PI Carlo Maley · 2009 to 2026
$5.0M
Application of Evolutionary Principles to Maintain Cancer Control (PQ21)R01CA170595 · NCI · H. LEE MOFFITT CANCER CTR & RES INST · PI GATENBY, ROBERT A · 2012 to 2015
$2.1M
(PQC3) Genomic Diversity and Microenvironment as Drivers of Metastasis in DCISR01CA185138 · NCI · DUKE UNIVERSITY · PI HWANG, E.SHELLEY, MALEY, CARLO · 2014 to 2017
$2.0M
NCI NIH HHS P01 CA091955NCI NIH HHS R01 CA140657NCI NIH HHS R01 CA170595NCI NIH HHS R01 CA185138NCI NIH HHS U2C CA233254NCI NIH HHS U54 CA217376
6 · The paper itself

Abstract

backgroundCancer is a common diagnosis in many mammalian species, yet they vary in their vulnerability to cancer. The factors driving this variation are unknown, but life history theory offers potential explanations to why cancer defense mechanisms are not equal across species. METHODOLOGY: Here we report the prevalence of neoplasia and malignancy in 37 mammalian species, representing 11 mammalian orders, using 42 years of well curated necropsy data from the San Diego Zoo and San Diego Zoo Safari Park. We collected data on life history components of these species and tested for associations between life history traits and both neoplasia and malignancy, while controlling for phylogenetic history.

resultsThese results support Peto's paradox, in that we find no association between lifespan and/or body mass and the prevalence of neoplasia or malignancy. However, a positive relationship exists between litter size and prevalence of malignancy (P = 0.005, Adj. R2 = 0.212), suggesting that a species' life history strategy may influence cancer vulnerabilities. Lastly, we tested for the relationship between placental invasiveness and malignancy. We find no evidence for an association between placental depth and malignancy prevalence (P = 0.618, Adj. R2 = 0.068).

conclusionsLife history theory offers a powerful framework to understand variation in cancer defenses across the tree of life. These findings provide insight into the relationship between life history traits and cancer vulnerabilities, which suggest a trade-off between reproduction and cancer defenses. LAY SUMMARY: Why are some mammals more vulnerable to cancer than others? We test whether life history trade-offs may explain this variation in cancer risk. Bigger, longer-lived animals do not develop more cancer compared to smaller, shorter-lived animals. However, we find a positive association between litter size and cancer prevalence in mammals.

Indexed as

cancercomparative oncologylife history theorymammalsPeto's Paradox

Identifiers

PMID33209304
PMCPMC7652303
OpenAlexW3029167267

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

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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.