Osteoporosis, bone & mineral

Associations between ultra-distal forearm bone mineral density and incident fracture in women

Osteoporos IntPublished Prospective cohort study

Main finding · Any fractureResult — go to the resultHazard ratio 1.26 95% CI 1.15–1.39

Authors' conclusion

Ultra-distal forearm BMD may aid risk assessments for any distal radius fractures.

Study context

Population
Geelong Osteoporosis Study women aged 40–90 years with bone mineral density (BMD) measured (Lunar DPX-L)
Participants
1,026 women14,270 person-years
Exposure
Ultra-distal forearm BMD and incident fracture
Outcome
Incident radiologically verified low-trauma fracture (any fracture and distal radius fracture)
Methodological detailslongitudinal, Cox proportional hazard models, areas under receiver operating characteristics (AUROC) analysis
  • Longitudinal
  • Cox proportional hazard models
  • AUROC analysis

Main finding

Any fracture

Hazard ratio

1.26

95% CI 1.15–1.39

Continuous BMDUDforearmvs Normal
HR 1.26 (95% CI 1.15–1.39)

As reported in the abstract

Observational data: associations, not effects.

Further findings

OutcomeHR (95% CI)
Distal radius fractureContinuous BMDUDforearmvs NormalAdjusted models1.59 (1.38–1.83)
Any fracture, categorical BMDUDforearmOsteoporosisvs NormalAdjusted models2.12 (1.50–2.98)
Distal radius fracture, categorical BMDUDforearmOsteopeniavs Normal4.31 (2.59–7.15)
Distal radius fracture, categorical BMDUDforearmOsteoporosisvs Normal4.81 (2.70–8.58)

AUROC, any fracture

AUROCs for continuous BMDUDforearm, BMD33%forearm, BMDhip, BMDspine and FRAX without BMD similar
P > 0.05
Categorical BMD similar at all sites but lower for FRAX
P < 0.05

AUROC, distal radius fracture

AUROC for BMDUDforearm higher than other sites and FRAX (continuous and categorical)
P < 0.05

Original publication

Associations between ultra-distal forearm bone mineral density and incident fracture in women. Osteoporos Int. Published 6 March 2024. doi:10.1007/s00198-024-07041-4

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