Department of Internal Medicine, Division of Endocrinology and Metabolism, Medical University of Graz, Auenbruggerpl. 2, A-8036, Graz, Austria.
Osteoporos Int. 2013 Sep;24(9):2413-21. doi: 10.1007/s00198-013-2339-0. Epub 2013 Apr 9.
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.
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).
Number of proximal humeral fractures were obtained from the Austrian Hospital Discharge Register for 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.
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.
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.
估计奥地利在二十年期间（1989-2008 年）近端肱骨骨折的发生率。年龄标准化发病率持续上升，主要是由于女性发病率的上升。
从奥地利住院登记处获得了所有年龄在 50 岁及以上的人群中近端肱骨骨折的数量。对同一诊断的多次登记以及并非所有近端肱骨骨折患者都在住院治疗的事实进行了调整因素的确定。为了分析该类型骨折在该期间的总体变化，计算了表示发病率比的平均年度变化。
在奥地利，50 岁以上人群中近端肱骨骨折的年龄标准化发病率（每 10 万人中的骨折数）在男性中从 112（95%CI，99-124）增加到 141（129-153），在女性中从 222（202-241）增加到 383（360-406）。这种增加似乎是线性的，没有在研究结束时趋于平稳。
虽然由于使用调整因素，解释结果时需要谨慎，但在奥地利，男性和女性近端肱骨骨折的发生率似乎都有所上升，而且近年来没有趋于平稳。其原因尚不清楚，但鉴于髋部骨折发生率的上升已趋于平稳，不能排除跌倒模式的改变。
