Epidemiology of proximal humeral fractures in Austria between 1989 and 2008
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ORIGINAL ARTICLE
Epidemiology of proximal humeral fractures in Austria between 1989 and 2008 H. P. Dimai & A. Svedbom & A. Fahrleitner-Pammer & T. Pieber & H. Resch & E. Zwettler & H. Thaler & M. Szivak & K. Amrein & F. Borgström
Received: 4 November 2012 / Accepted: 20 February 2013 # International Osteoporosis Foundation and National Osteoporosis Foundation 2013
E. Zwettler Ludwig-Boltzmann Institute of Osteology, Hanusch Hospital of Vienna, Vienna, Austria
the entire population >50 years of age. Adjustment factors were determined for multiple registrations of the same diagnosis, and for the fact that not all patients with proximal humeral fractures are treated in an inpatient setting. To analyze the overall change in this type of fracture for the period, average annual changes expressed as incidence rate ratios were calculated. Results The estimated age-standardized incidence (fractures per 100,000 individuals) of proximal humeral fractures among Austrians >50 years of age increased in men from 112 (95 % CI, 99–124) to 141 (129–153) and in women from 222 (202–241) to 383 (360–406). The increase appeared to be linear with no leveling off towards the end of the study period. Conclusion While some caution is necessary when interpreting the results given the use of adjustment factors, there appears to have been a rise in the incidence of proximal humeral fractures in Austria in both men and women, with no leveling off in recent years. The reasons for this are not clear, but in the light of previously reported leveling off in the increase in the incidence of hip fractures, a change in the patterns of falls cannot be ruled out.
H. Thaler Trauma Center Meidling, Vienna, Austria
Keywords Age-adjusted incidence . Crude incidence . Humeral fracture . Osteoporosis . Trend analyses
Abstract Summary Incidence rates of proximal humeral fractures in Austria over a period of twenty years (1989–2008) were estimated. Age standardized incidence rates increased until 2008, primarily driven by an increase in incidence rates in women. Introduction The aim of the prevailing study was to estimate incidence rates of proximal humeral fractures and to assess changes in trend in the Austrian population aged 50 years and above, over a period of 20 years (1989–2008). Methods Number of proximal humeral fractures were obtained from the Austrian Hospital Discharge Register for H. P. Dimai (*) : A. Fahrleitner-Pammer : T. Pieber : K. Amrein Department of Internal Medicine, Division of Endocrinology and Metabolism, Medical University of Graz, Auenbruggerpl. 2, A-8036 Graz, Austria e-mail: [email protected] H. Resch St. Vincent Hospital, Medical Department II, Vienna, Austria
A. Svedbom OptumInsight, Stockholm, Sweden
Introduction M. Szivak Austrian Trauma Insurance Agency (AUVA), Vienna, Austria F. Borgström LIME/MMC, Karolinska Institutet, Stockholm, Sweden
Osteoporosis is defined as a “systemic skeletal disease characterized by low bone mass and microarchitectural deterioration of bone tissue with a consequent increase in bone
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