Yan L, Zhou B, Prentice A, Wang X, Golden M H
Department of Preventive Medicine, Shenyang Medical College, People's Republic of China.
Bone. 1999 Feb;24(2):151-5. doi: 10.1016/s8756-3282(98)00168-9.
The aim of this study was to investigate the incidence and epidemiology in 1994 of hip fracture in Shenyang, a large city in the northeast of The People's Republic of China, using register information and medical records collected from the 36 hospitals in Shenyang. The hip fracture data were restricted to cervical or trochanteric types. A subset (59% of total) of medical records of hip fracture was used to investigate the causes of hip fracture. The causes were classified as simple fall, fall from a bicycle during cycling, bicycle accident, car accident, and fall from a height. There was a total of 453 hip fractures (206 in women and 247 in men) in the population over 50 years of age. The age-adjusted 1 year cumulative incidence rate was 67/100,000 (95% confidence interval [CI] = 58-76/100,000) for women and 81/100,000 (95% CI = 71-91/100,000) for men. The standardized incidence rate against the 1985 U.S. population was 87/100,000 (95% CI = 77-97/100,000) for women and 100/100,000 (95% CI = 89-111/100,000) for men. The mean (+/-standard deviation) age of patients with a hip fracture was 67.5+/-9.8 years for men and 66.9+/-9.0 years for women. The overall male-to-female ratio of hip fracture was 1.21:1 for age-adjusted hip fracture incidence and 1.15:1 for standardized incidence. Simple fall accounted for 70% hip fractures in women but caused only 49% in men (chi2 = 11.2, degrees of freedom [df] = 1,p = 0.0008). The frequency of hip fractures caused by a fall from a bicycle was higher in men (28%) than women (10%) (chi2 = 13.0, df = 1,p = 0.0003). The results of this study indicate (1) a low incidence of hip fracture in a Chinese population compared with more affluent countries, and (b) a higher incidence in men than women that is related in part to a higher incidence of accidents, especially bicycle-related ones.
本研究旨在利用从沈阳市36家医院收集的登记信息和病历，调查1994年中华人民共和国东北部大城市沈阳市髋部骨折的发病率和流行病学情况。髋部骨折数据仅限于颈椎或转子类型。一部分髋部骨折病历（占总数的59%）用于调查髋部骨折的原因。这些原因分为单纯跌倒、骑自行车时从自行车上跌落、自行车事故、汽车事故和高处坠落。50岁以上人群中共有453例髋部骨折（女性206例，男性247例）。年龄调整后的1年累积发病率女性为67/100,000（95%置信区间[CI]=58-76/100,000），男性为81/100,000（95%CI=71-91/100,000）。以1985年美国人群为标准的标准化发病率女性为87/100,000（95%CI=77-97/100,000），男性为100/100,000（95%CI=89-111/100,000）。髋部骨折患者的平均（±标准差）年龄男性为67.5±9.8岁，女性为66.9±9.0岁。年龄调整后的髋部骨折发病率男女总体比例为1.21:1，标准化发病率为1.15:1。单纯跌倒导致女性髋部骨折的比例为70%，但男性仅为49%（χ2=11.2，自由度[df]=1，p=0.0008）。男性因从自行车上跌落导致髋部骨折的频率（28%）高于女性（10%）（χ2=13.0，df=1，p=0.0003）。本研究结果表明：（1）与更富裕国家相比，中国人群中髋部骨折的发病率较低；（2）男性发病率高于女性，部分原因是事故发生率较高，尤其是与自行车相关的事故。
