Evidence map›Paper›PMID 34169346›Full record

SynthesisOsteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA2021

Socio-economic inequalities in fragility fracture incidence: a systematic review and meta-analysis of 61 observational studies.

G Valentin, M B Ravn, E K Jensen, K Friis, A Bhimjiyani, Y Ben-Shlomo, A Hartley, C P Nielsen, B Langdahl, C L Gregson

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
26citing 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

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

  1. Pooled it
  2. Pooled it
  3. Article
  4. The role of income and educational level as risk factors for atypical femur fractures: A Nationwide Danish Case-Cohort Study with Blinded Radiographic Review.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2026
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  11. Global burden of low bone mineral density related fractures in pre- and post-menopausal women from 1990 to 2021, with projections to 2050.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2025
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  19. Educational gradient in hip fracture incidence in Norway. The Norwegian Epidemiologic Osteoporosis Studies (NOREPOS).Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2024
    Article
  20. Frailty Status, Sedentary Behaviors, and Risk of Incident Bone Fractures.The journals of gerontology. Series A, Biological sciences and medical sciences · 2024
    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

10 authors.

G ValentinDepartment of Public Health and Health Services Research, DEFACTUM, Central Denmark Region, Aarhus, Denmark. Gitte.valentin@rm.dk.ORCID http://orcid.org/0000-0002-0668-6862
M B RavnDepartment of Public Health and Health Services Research, DEFACTUM, Central Denmark Region, Aarhus, Denmark.ORCID https://orcid.org/0000-0001-6978-6070
E K JensenDepartment of Public Health and Health Services Research, DEFACTUM, Central Denmark Region, Aarhus, Denmark.ORCID https://orcid.org/0000-0002-6728-2546
K FriisDepartment of Public Health and Health Services Research, DEFACTUM, Central Denmark Region, Aarhus, Denmark.ORCID https://orcid.org/0000-0001-5967-2723
A BhimjiyaniDepartment of Clinical Biochemistry, Royal Free Hospital, London, UK.ORCID https://orcid.org/0000-0003-2985-5582
Y Ben-ShlomoPopulation Health Sciences, Bristol Medical School, University of Bristol, Bristol, UK.ORCID https://orcid.org/0000-0001-6648-3007
A HartleyMRC Integrative Epidemiology Unit, Bristol Medical School, Oakfield House, Bristol, BS8 2BN, UK.ORCID https://orcid.org/0000-0003-4932-1588
C P NielsenDepartment of Public Health and Health Services Research, DEFACTUM, Central Denmark Region, Aarhus, Denmark.ORCID https://orcid.org/0000-0001-9199-3463
B LangdahlDepartment of Clinical Medicine, Aarhus University, Aarhus, Denmark.ORCID https://orcid.org/0000-0002-8712-7199
C L GregsonMusculoskeletal Research Unit, Bristol Medical School, University of Bristol, Learning & Research Building, Southmead Hospital, Bristol, BS10 5NB, UK.ORCID https://orcid.org/0000-0001-6414-0529

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Individuals with low socio-economic status (SES) have a more than 25% higher risk of fragility fractures than individuals with high SES. Body mass index and lifestyle appear to mediate the effect of SES on fracture risk. Strategies to prevent fractures should aim to reduce unhealthy behaviours through tackling structural inequalities.

introductionThis systematic review and meta-analysis aimed to evaluate the impact of socio-economic status (SES) on fragility fracture risk.

methodsMedline, Embase, and CINAHL databases were searched from inception to 28 April 2021 for studies reporting an association between SES and fragility fracture risk among individuals aged ≥50 years. Risk ratios (RR) were combined in meta-analyses using random restricted maximum likelihood models, for individual-based (education, income, occupation, cohabitation) and area-based (Index of Multiple Deprivation, area income) SES measures.

resultsA total of 61 studies from 26 different countries including more than 19 million individuals were included. Individual-based low SES was associated with an increased risk of fragility fracture (RR 1.27 [95% CI 1.12, 1.44]), whilst no clear association was seen when area-based measures were used (RR 1.08 [0.91, 1.30]). The strength of associations was influenced by the type and number of covariates included in statistical models: RR 2.69 [1.60, 4.53] for individual-based studies adjusting for age, sex and BMI, compared with RR 1.06 [0.92, 1.22] when also adjusted for health behaviours (smoking, alcohol, and physical activity). Overall, the quality of the evidence was moderate.

conclusionOur results show that low SES, measured at the individual level, is a risk factor for fragility fracture. Low BMI and unhealthy behaviours are important mediators of the effect of SES on fracture risk. Strategies to prevent fractures and reduce unhealthy behaviours should aim to tackle structural inequalities in society thereby reducing health inequalities in fragility fracture incidence.

Indexed as

Fractures, BoneSocial ClassExerciseHumansIncomeLife StyleSocioeconomic FactorsDeprivationFractureHealth inequalityMeta-analysisSocio-economic statusSystematic review

Identifiers

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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.