Incidence of proximal humerus fracture among older adults in Oslo, Norway varies by country background, marital status, and season
Authors' conclusion
Having Norwegian background and being unmarried carried the highest humerus fracture risk.
Study context
- Population
- Individuals born < 1952 living in Oslo, Norway; humerus fractures 2012–2022 from the Norwegian Patient Registry3,520 humerus fractures (79% women)
- Participants
- 100,982 individuals
- Exposure
- Humerus fracture risk by age, sex, marital status, education and country background
- Outcome
- Incidence of proximal humerus fracture
Methodological detailsPoisson regression, age-standardized incidence rates (≥ 70 years)
- Poisson regression
- Age-standardized incidence rates (≥ 70 years)
Main finding
As reported in the abstract
Humerus fracture incidence rate
Observational data: associations, not effects.
Further findings
| Outcome | IRR (95% CI) | |
|---|---|---|
| Fracture risk by country background, mainly Asia/Africa vs Norway (lowest-risk category)Asia/Africa (women)vs Norway | 0.49 (0.38–0.65) | |
| Fracture risk by country background, mainly Asia/Africa vs Norway (lowest-risk category)Asia/Africa (men)vs Norway | 0.37 (0.24–0.57) | |
| Fracture risk by marital statusUnmarried womenvs Married women | 1.17 (1.03–1.33) | |
| Fracture risk by marital statusUnmarried menvs Married men | 1.70 (1.37–2.11) | |
| 0.20.5125Incidence rate ratio (log scale) |
Fracture risk by country background, mainly Asia/Africa vs Norway (lowest-risk category)
- Risk lower in all country background categories vs Norway (reference)
Seasonal distribution
- Humerus fracture numbers peaked during winter
Original publication
Incidence of proximal humerus fracture among older adults in Oslo, Norway varies by country background, marital status, and season. Osteoporos Int. Published 23 February 2026. doi:10.
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