METHODS: The study was conducted at a specialized orthopaedic hospital which provides services to residents in the three governorates--representing about 70% of the total population of Kuwait. All new hip fracture patients who were operated on or treated conservatively during the 4-year period (1992-1995) were included in the study. Hip fracture was defined as clinical and radiological evidence of fracture of the proximal femur. For comparison with other populations, age-specific incidence rates in females and males aged > or =50 years were standardized to the 1985 US population.
RESULTS: A total of 513 cases of hip fracture (205 females, 308 males) were recorded during the study period: 293 (57.1%) cases occurred among Kuwaiti nationals and 220 (42.9%) among non-Kuwaitis (expatriates). Age-standardized rates (per 100,000) of hip fractures were, in Kuwaitis, 295 for females (95% CI: 238.8-350.8) and 200 for males (95% CI: 163.3-236.5)--much higher than those observed in other Asian countries such as Korea, Singapore, China, Malaysia, and Japan (41-202 for females, 49-100 for males). Rates in Kuwaiti females were similar to those observed in some of the European countries (Italy, UK, France) and in Asian females in the US. In contrast, rates in Kuwaiti males, which were relatively high, were almost equal to those observed in white males in the US. Rates of hip fracture in non-Kuwaitis (374 for females [95% CI: 247.6-500.8], 215 for males [95% CI: 126.5-302.9]), who predominantly (96%) originate from southeast Asian and Arab countries, were similar to those observed in Kuwaiti nationals.
CONCLUSIONS: The incidence of hip fracture in the Kuwaiti population is higher than that reported from other countries in Asia and is comparable to the incidence in some of the western European and North American populations.