Osteoporosis, bone & mineral

Type 1 and 2 diabetes mellitus: comprehensive fracture risk relationships in UK Biobank

J Bone Miner ResPublished Prospective cohort study

Authors' conclusion

Diabetes is associated with increased risk of fracture (magnitude of effect greater in type 1 than type 2 diabetes). Associations were partly independent of traditional risk factors, adiposity, eBMD, and CRP. Type 2 diabetes disease duration and the presence of microvascular complications in both types were dose-dependent risk factors for fracture.

Study context

Population
UK Biobank participants recruited 2006–2010 at age 40–69 yr; 271,882 women (mean age 56 yr), 227,067 men (57 yr)
Participants
498,949 participants
Exposure
T1D or T2D vs no diabetes
Outcome
First incident osteoporotic fracture
Methodological detailspopulation-based, UK Biobank, Poisson regression adjusted for clinical risk factors, heel US eBMD, adiposity and C-reactive protein (CRP)
  • Population-based
  • UK Biobank
  • Poisson regression adjusted for clinical risk factors, heel US eBMD, adiposity and CRP

Main finding

As reported in the abstract

Incident osteoporotic fracture
Fully adjusted
Each group vs no diabetesIncidence rate ratio (95% CI)
Type 1 diabetes
2.93(2.37–3.62)
Type 2 diabetes
1.25(1.14–1.38)

Observational data: associations, not effects.

Further findings

OutcomeIRR (CI)
Fracture risk by microvascular complicationsAny complicationsvs No complications2.03 (1.57–2.62)

Fracture risk by T2D duration

Magnitude of risk associated with T2D increased with duration of disease

Fracture risk by microvascular complications

Increasing number of microvascular complications associated with greater fracture risk

Original publication

Type 1 and 2 diabetes mellitus: comprehensive fracture risk relationships in UK Biobank. J Bone Miner Res. Published 11 July 2025. doi:10.1093/jbmr/zjaf094

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