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Epidemiology of distal forearm fractures in Austria between 1989 and 2010
H P Dimai1, A Svedbom, A Fahrleitner-Pammer
1Department of Internal Medicine, Division of Endocrinology and Metabolism, Medical University of Graz, Auenbruggerpl. 2, A-8036, Graz, Austria, hans.dimai@medunigraz.at.
Unlabelled:
Only few studies have been published hitherto on country-specific incidence of distal forearm fracture. In the prevailing study, incidences were estimated, and trend analyses were performed for the entire Austrian population aged ≥50á. Incidence decreased significantly in women, but not in men, over the past 12 years of observation.
Introduction:
To estimate incidence of distal forearm fracture and assess incidence trends in the entire Austrian population aged ≥50á from 1989-2010 for inpatient fractures and from 1999 to 2010 for all fractures.
Methods:
The number of inpatient forearm fractures was obtained from the Austrian Hospital Discharge Register (AHDR) for the entire population aged ≥50á from 1989 to 2010. Total number of distal forearm fractures was modeled using patient-level data on 36,327 patients with distal forearm fractures. Crude and age-standardized incidence rates (cases per 100,000) were estimated in 5-year age intervals. To analyze the change in incidence over time, average annual changes expressed as incidence rate ratios (IRR) were calculated.
Results:
For all distal forearm fractures, age-standardized incidence in women in 1999 and 2009 were estimated at 709 (95 % CI 675-743) and 607 (578-637), respectively. The age-standardized incidences in men the same years were estimated at 171 (156-185) and 162 (151-174), respectively. IRR analyses showed a significant decrease in women (-1.1 %, p < 0.01) but not in men (-0.8 %, p > 0.05) over the last 12 years (1999-2010).
Conclusion:
Incidence of distal forearm fracture in the entire Austrian population is comparable to hip fracture incidence which is known to be among the highest worldwide. However, trend analyses reveal a significant decrease for all distal forearm fractures in women, but not in men, over the last 12 years.
