Hinton R Y, Lennox D W, Ebert F R, Jacobsen S J, Smith G S
Department of Orthopaedic Surgery, Union Memorial Hospital, Baltimore, Maryland 21218, USA.
J Bone Joint Surg Am. 1995 May;77(5):695-702. doi: 10.2106/00004623-199505000-00005.
We studied the Medicare data from 1984 through 1987 for 687,850 fractures of the hip that had occurred in the United States. Our purpose was to determine the geographic, sex-specific, and age-interval variations in the relative risk of fracture of the hip in elderly white individuals. The rates of cervical, trochanteric, and subtrochanteric fracture, and the over-all rate of fracture at any of the three levels, increased with age, were greater for women than for men, and were higher in the Southern part of the country. However, there were regional, sex, and age variations. The ratio of cervical to trochanteric fractures was significantly higher in the East South Central region and lower in the Middle Atlantic and New England regions (p < 0.05). These were the same areas with the highest and lowest over-all rates, respectively, of fracture of the hip. The ratio of cervical to trochanteric fractures decreased from 1.52 in women who were sixty-five to sixty-nine years old to 0.81 in women who were at least eighty-five years old, but it stayed at approximately 1.00 for the corresponding age-groups of men. The ratio of fracture of the hip in women to fracture of the hip in men varied depending on the level of the fracture.
我们研究了1984年至1987年美国687850例髋部骨折的医疗保险数据。我们的目的是确定老年白人个体髋部骨折相对风险的地理、性别和年龄间隔差异。颈椎、转子和转子下骨折的发生率以及这三个部位中任何一个部位的总体骨折发生率均随年龄增长而增加，女性高于男性，且在美国南部更高。然而，存在地区、性别和年龄差异。东南中部地区颈椎骨折与转子骨折的比例显著高于中大西洋和新英格兰地区（p<0.05）。这些地区分别是髋部骨折总体发生率最高和最低的地区。颈椎骨折与转子骨折的比例在65至69岁的女性中从1.52降至至少85岁女性中的0.81，但在相应年龄组的男性中该比例约为1.00。女性髋部骨折与男性髋部骨折的比例因骨折部位而异。
