Evidence map›Paper›PMID 31418688›Full record

ArticleeLife2019

Computed tomography shows high fracture prevalence among physically active forager-horticulturalists with high fertility.

Jonathan Stieglitz, Benjamin C Trumble, HORUS Study Team, Caleb E Finch, Dong Li, Matthew J Budoff, Hillard Kaplan, Michael D Gurven

Abstract read
In one paragraph

Article in eLife, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing 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

18 citing papers in PubMed.

  1. Oxytocin varies across the life course in a sex-specific way in a human subsistence population.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  2. Article
  3. Review
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  5. Poor Oral Health Is Associated With Inflammation, Aortic Valve Calcification, and Brain Volume Among Forager-Farmers.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024
    Article
  6. Article
  7. Energetic costs of testosterone in two subsistence populations.American journal of human biology : the official journal of the Human Biology Council · 2023
    Article
  8. Article
  9. Article
  10. A male pheromone that improves the quality of the oogenic germline.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  11. Article
  12. Article
  13. Article
  14. Multi-system physiological dysregulation and ageing in a subsistence population.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2020
    Article
  15. Review
  16. Article
  17. THE EXPOSOME IN HUMAN EVOLUTION: FROM DUST TO DIESEL.The Quarterly review of biology · 2019
    Article
  18. 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

8 authors.

Jonathan StieglitzUniversité Toulouse 1 Capitole, Toulouse, France.ORCID 0000-0001-5985-9643
Benjamin C TrumbleCenter for Evolution and Medicine, Arizona State University, Tempe, United States.
HORUS Study Team
Caleb E FinchLeonard Davis School of Gerontology, University of Southern California, Los Angeles, United States.ORCID 0000-0002-7617-3958
Dong LiSchool of Medicine, Emory University, Atlanta, United States.
Matthew J BudoffLos Angeles Biomedical Research Institute, Harbor-University of California at Los Angeles Medical Center, Torrance, United States.
Hillard KaplanEconomic Science Institute, Chapman University, Orange, United States.
Michael D GurvenDepartment of Anthropology, University of California, Santa Barbara, Santa Barbara, United States.

Funding

The Human Life Course and the Biodemography of AgingR01AG024119 · NIA · UNIVERSITY OF CALIFORNIA SANTA BARBARA · PI GURVEN, MICHAEL DOUGLAS, KAPLAN, HILLARD S · 2004 to 2015
$7.4M
Agence Nationale de la Recherche ANR-17-EURE-0010NIA NIH HHS R01 AG024119NIH HHS R01AG024119
6 · The paper itself

Abstract

Modern humans have more fragile skeletons than other hominins, which may result from physical inactivity. Here, we test whether reproductive effort also compromises bone strength, by measuring using computed tomography thoracic vertebral bone mineral density (BMD) and fracture prevalence among physically active Tsimane forager-horticulturalists. Earlier onset of reproduction and shorter interbirth intervals are associated with reduced BMD for women. Tsimane BMD is lower versus Americans, but only for women, contrary to simple predictions relying on inactivity to explain skeletal fragility. Minimal BMD differences exist between Tsimane and American men, suggesting that systemic factors other than fertility (e.g. diet) do not easily explain Tsimane women's lower BMD. Tsimane fracture prevalence is also higher versus Americans. Lower BMD increases Tsimane fracture risk, but only for women, suggesting a role of weak bone in women's fracture etiology. Our results highlight the role of sex-specific mechanisms underlying skeletal fragility that operate long before menopause.

Indexed as

Bone DensityEthnicityFeeding BehaviorReproductive BehaviorAdultAgedAged, 80 and overBoliviaFemaleFractures, BoneHumansMaleMiddle AgedPrevalenceSex FactorsTomography, X-Ray Computedbone mineral densityevolutionary biologyhumanhuman biologyhuman evolutionlife history theorymedicineosteoporosisskeletal gracility

Identifiers

PMID31418688
PMCPMC6726459

What OpenQuestion holds

Textmetadata
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.