Epidemiology of cervical and XXXX of the proximal femur in 1994 in Tangshan, China.

@entity1 @entity173 @entity174
The purpose of this study was to determine the incidence of cervical and @entity173 of the proximal femur in 1994 in Tangshan City, China. There are many reports on hip @entity174 incidence in many countries, suggesting that there are many factors affecting @entity173 . We visited 15 hospitals with an orthopaedic department within Tangshan City, and reviewed the medical records and radiographs of all @entity1 with @entity173 occurring between January 1 and December 31, 1994. The population of Tangshan in 1994 was determined to be 1,454,543 (746,015 males and 708,528 females). The population of those over 65 years of age was 88,490 (41,519 males and 46,971 females), representing 6.08% of the total population. This study detected 184 cervical and @entity173 of the proximal femur in 1994 in Tangshan (127 @entity1 and 57 @entity1 ). The overall incidence or rate of the combined number of cervical and @entity173 was 25 @entity174 per 100,000 population per year for @entity1 and 12 for @entity1 . There were a total of 147 cervical @entity174 (80%) and 37 @entity173 (20%). The incidence of the combined number of cervical and @entity173 in @entity1 over 70 years of age increased to 108 for @entity1 and 156 for @entity1 . The incidence of @entity173 increased with age in both sex groups, especially in @entity1 over 65. Severe trauma @entity174 happened more often in younger groups, and mainly occurred in @entity1 , which may be a result of the particular composition of the population in Tangshan, which is young and male dominated. In addition, because Tangshan is an industrial city, many of its citizens are involved in occupations requiring a high level of physical activity.
