Evidence map›Paper›PMID 34101735›Full record

SynthesisPloS one2021

Association between obesity and risk of fracture, bone mineral density and bone quality in adults: A systematic review and meta-analysis.

Anne-Frédérique Turcotte, Sarah O'Connor, Suzanne N Morin, Jenna C Gibbs, Bettina M Willie, Sonia Jean, Claudia Gagnon

Open access · goldAbstract readComparative StudyMeta-AnalysisSystematic Review
In one paragraph

Synthesis in PloS one, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 108 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
108citing papers in PubMed, 4 pooled it
19.5field-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

108 citing papers in PubMed, 4 syntheses or guidelines pooled it, 152 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Trial
  6. Glucose metabolism in osteoporosis: A potential therapeutic target (Review).International journal of molecular medicine · 2026
    Review
  7. Observational
  8. Obesity-related bone fragility: An emerging clinical paradox.The Indian journal of medical research · 2026
    Article
  9. Rural-urban differences in osteoporosis and sarcopenia prevalence among Gambian older adults: a pilot study.Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research · 2026
    Article
  10. Article
  11. Article
  12. Article
  13. Beyond Weight Loss: Skeletal Considerations in Obesity Treatment.Endocrinology and metabolism (Seoul, Korea) · 2026
    Review
  14. Impact of splenectomy on fracture risk via the bone-immune axis: A nationwide Korean cohort study.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
    Article
  15. Article
  16. The Intimate Relationship between Adipose Tissue, Fertility, and Bone.Journal of frailty, sarcopenia and falls · 2026
    Review
  17. Fracture trends in Denmark from 1997 to 2021.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
    Article
  18. Article
  19. Article
  20. Article

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

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 3 institutions in 1 country.

Anne-Frédérique TurcotteEndocrinology and Nephrology Unit, CHU de Québec-Université Laval Research Center, Québec (QC), Canada.ORCID 0000-0002-0799-8411
Sarah O'ConnorInstitut universitaire de cardiologie et de pneumologie de Québec-Université Laval Research Center, Québec (QC), Canada.
Suzanne N MorinDepartment of Medicine, Faculty of Medicine, McGill University, Montreal (QC), Canada.
Jenna C GibbsDepartment of Kinesiology and Physical Education, McGill University, Montreal (QC), Canada.
Bettina M WillieDepartment of Pediatric Surgery, Shriners Hospital for Children-Canada, Research Centre, McGill University, Montreal (QC), Canada.
Sonia JeanDepartment of Medicine, Faculty of Medicine, Laval University, Québec (QC), Canada.
Claudia GagnonEndocrinology and Nephrology Unit, CHU de Québec-Université Laval Research Center, Québec (QC), Canada.ORCID 0000-0001-9623-962X
McGill University · CAInstitut National de Santé Publique du Québec · CAInstitut universitaire de cardiologie et de pneumologie de Québec · CA

Funding

CIHR
6 · The paper itself

Abstract

backgroundThe association between obesity and fracture risk may be skeletal site- and sex-specific but results among studies are inconsistent. Whilst several studies reported higher bone mineral density (BMD) in patients with obesity, altered bone quality could be a major determinant of bone fragility in this population.

objectivesThis systematic review and meta-analysis aimed to compare, in men, premenopausal women and postmenopausal women with obesity vs. individuals without obesity: 1) the incidence of fractures overall and by site; 2) BMD; and 3) bone quality parameters (circulating bone turnover markers and bone microarchitecture and strength by advanced imaging techniques). DATA SOURCES: PubMed (MEDLINE), EMBASE, Cochrane Library and Web of Science were searched from inception of databases until the 13th of January 2021. DATA SYNTHESIS: Each outcome was stratified by sex and menopausal status in women. The meta-analysis was performed using a random-effect model with inverse-variance method. The risks of hip and wrist fracture were reduced by 25% (n = 8: RR = 0.75, 95% CI: 0.62, 0.91, P = 0.003, I2 = 95%) and 15% (n = 2 studies: RR = 0.85, 95% CI: 0.81, 0.88), respectively, while ankle fracture risk was increased by 60% (n = 2 studies: RR = 1.60, 95% CI: 1.52, 1.68) in postmenopausal women with obesity compared with those without obesity. In men with obesity, hip fracture risk was decreased by 41% (n = 5 studies: RR = 0.59, 95% CI: 0.44, 0.79). Obesity was associated with increased BMD, better bone microarchitecture and strength, and generally lower or unchanged circulating bone resorption, formation and osteocyte markers. However, heterogeneity among studies was high for most outcomes, and overall quality of evidence was very low to low for all outcomes.

conclusionsThis meta-analysis highlights areas for future research including the need for site-specific fracture studies, especially in men and premenopausal women, and studies comparing bone microarchitecture between individuals with and without obesity. SYSTEMATIC REVIEW REGISTRATION NUMBER: CRD42020159189.

Indexed as

ObesityOsteoporosis, PostmenopausalBone DensityBone Density Conservation AgentsData ManagementFemaleHumansMaleBone Density Conservation Agents

Identifiers

PMID34101735
PMCPMC8186797
OpenAlexW3172993534

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.