title: Secular increase and geographical differences in hip fracture incidence in Norway.
abstract: In 1988 and 1989, 2790 hip fractures were reported from the urban population of Oslo (annual incidence per 10,000 in the age group 50 years and older: women 118.7, men 45.4). For the same period, 385 fractures were reported from the rural population of the county Sogn og Fjordane (annual incidence per 10,000 in the age-group 50 years and older: women 74.6, men 36.7). The hip fracture incidence in Oslo had increased for all sex and age groups above 50 years (except women 50-59 years) in the 10-year period 1978/79 to 1988/89. The incidence of hip fractures in Sogn og Fjordane was only 65% of the incidence in Oslo. These results support previous reports on a secular increase and geographical differences in hip fracture incidence.
authors.affiliation: Department of Internal Medicine, Aker University Hospital, Oslo, Norway.
authors.forename: J A
authors.initials: JA
authors.lastname: Falch
authors.forename: T S
authors.initials: TS
authors.lastname: Kaastad
authors.forename: G
authors.initials: G
authors.lastname: Bøhler
authors.forename: J
authors.initials: J
authors.lastname: Espeland
authors.forename: O J
authors.initials: OJ
authors.lastname: Sundsvold
mesh_terms: D017677:Age Distribution; D005260:Female; D006620:Hip Fractures / Q000453:epidemiology*; D006801:Humans; D015994:Incidence; D008297:Male; D009664:Norway / Q000453:epidemiology; D012189:Retrospective Studies; D012423:Rural Health; D017678:Sex Distribution; D014504:Urban Health