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


Journal

PloS one
ISSN: 1932-6203
Titre abrégé: PLoS One
Pays: United States
ID NLM: 101285081

Informations de publication

Date de publication:
2021
Historique:
received: 19 01 2021
accepted: 15 05 2021
entrez: 8 6 2021
pubmed: 9 6 2021
medline: 11 11 2021
Statut: epublish

Résumé

The 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. This 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). PubMed (MEDLINE), EMBASE, Cochrane Library and Web of Science were searched from inception of databases until the 13th of January 2021. 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. This 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. CRD42020159189.

Sections du résumé

BACKGROUND
The 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.
OBJECTIVES
This 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.
CONCLUSIONS
This 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.

Identifiants

pubmed: 34101735
doi: 10.1371/journal.pone.0252487
pii: PONE-D-21-02000
pmc: PMC8186797
doi:

Substances chimiques

Bone Density Conservation Agents 0

Types de publication

Comparative Study Journal Article Meta-Analysis Research Support, Non-U.S. Gov't Systematic Review

Langues

eng

Sous-ensembles de citation

IM

Pagination

e0252487

Subventions

Organisme : CIHR
Pays : Canada

Déclaration de conflit d'intérêts

No authors have competing interests.

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Auteurs

Anne-Frédérique Turcotte (AF)

Endocrinology and Nephrology Unit, CHU de Québec-Université Laval Research Center, Québec (QC), Canada.
Obesity, Type 2 Diabetes and Metabolism Unit, Institut universitaire de cardiologie et de pneumologie de Québec-Université Laval Research Center, Québec (QC), Canada.
Department of Medicine, Faculty of Medicine, Laval University, Québec (QC), Canada.

Sarah O'Connor (S)

Institut universitaire de cardiologie et de pneumologie de Québec-Université Laval Research Center, Québec (QC), Canada.
Department of Pharmacy, Faculty of Pharmacy, Laval University, Québec (QC), Canada.
Bureau d'information et études en santé des populations, Institut national de santé publique du Québec, Québec (QC), Canada.

Suzanne N Morin (SN)

Department of Medicine, Faculty of Medicine, McGill University, Montreal (QC), Canada.

Jenna C Gibbs (JC)

Department of Kinesiology and Physical Education, McGill University, Montreal (QC), Canada.

Bettina M Willie (BM)

Department of Pediatric Surgery, Shriners Hospital for Children-Canada, Research Centre, McGill University, Montreal (QC), Canada.

Sonia Jean (S)

Department of Medicine, Faculty of Medicine, Laval University, Québec (QC), Canada.
Bureau d'information et études en santé des populations, Institut national de santé publique du Québec, Québec (QC), Canada.

Claudia Gagnon (C)

Endocrinology and Nephrology Unit, CHU de Québec-Université Laval Research Center, Québec (QC), Canada.
Obesity, Type 2 Diabetes and Metabolism Unit, Institut universitaire de cardiologie et de pneumologie de Québec-Université Laval Research Center, Québec (QC), Canada.
Department of Medicine, Faculty of Medicine, Laval University, Québec (QC), Canada.

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