Osteoporosis International

, Volume 19, Issue 6, pp 781–786 | Cite as

Epidemiology of distal forearm fractures in Oslo, Norway

  • C. M. LofthusEmail author
  • F. Frihagen
  • H. E. Meyer
  • L. Nordsletten
  • K. Melhuus
  • J. A. Falch
Original Article



The population of Oslo has the highest incidence of hip fracture reported. The present study shows that the overall incidence of distal forearm fractures in Oslo is higher than in other countries and has not changed significantly when comparing the incidence of 1998/99 with 1979.


The population of Oslo has the highest incidence of hip fracture reported. The present study reports the incidence of distal forearm fracture in Oslo and the fracture rates of immigrants.


Patients aged ≥20 years resident in Oslo sustaining a distal forearm fracture in a one-year period in 1998/99 were identified using electronic diagnosis registers, patient protocols, and/or X-ray registers of the clinics in Oslo. Medical records were obtained and the diagnosis verified. The age- and sex-specific incidence rates were calculated and compared with those for 1979. Data on immigrant category and country of origin of the patients were obtained.


The age-adjusted fracture rates per 10,000 for the age group ≥50 years were 109.8 and 25.4 in 1998/99 compared with 108.3 and 23.5 in 1979 for women and men, respectively (n.s.). The relative risk of fracture in Asians was 0.72 (95% CI 0.53–1.00) compared with ethnic Norwegians.


The overall incidence of distal forearm fractures in Oslo is higher than in other countries and has not changed significantly when comparing the incidence of 1998/99 with 1979. Furthermore, the present data suggest that Asian immigrants in Oslo have a slightly lower fracture risk than ethnic Norwegians.


Distal forearm fracture Epidemiology Ethnic groups Incidence Osteoporosis 



The authors wish to thank the four outpatient clinics and the four somatic hospitals of Oslo for help and assistance during the data collection. This project was financially supported by grants from the “EXTRA funds” of the Norwegian Foundation for Health and Rehabilitation.


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Copyright information

© International Osteoporosis Foundation and National Osteoporosis Foundation 2007

Authors and Affiliations

  • C. M. Lofthus
    • 1
    • 6
    Email author
  • F. Frihagen
    • 2
  • H. E. Meyer
    • 3
    • 4
  • L. Nordsletten
    • 2
  • K. Melhuus
    • 5
  • J. A. Falch
    • 1
  1. 1.Centre of EndocrinologyAker University Hospital, Oslo and Faculty of Medicine, University of OsloOsloNorway
  2. 2.Orthopaedic CentreUllevål University Hospital, Oslo and Faculty of Medicine, University of OsloOsloNorway
  3. 3.Division of EpidemiologyNorwegian Institute of Public HealthOsloNorway
  4. 4.Department of General Practice and Community MedicineUniversity of OsloOsloNorway
  5. 5.Oslo Emergency WardUllevål University HospitalOsloNorway
  6. 6.Centre of Endocrinology, The Hormone LaboratoryAker University HospitalOsloNorway

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