Table 1 The relationship of gender, age, and percentage of patients to hip disease, in the NHI research database 1996–2004.
From: Incidence of hip replacement among national health insurance enrollees in Taiwan
All primary operations including partial and total hip replacement (94,182) | ||||
|---|---|---|---|---|
Hip disease | Number (%) | Men (%) | Age < 60 years (%) | Mean age in years |
Femoral neck fractures | 40143 (42.6) | 35 | 4.5 | 76 |
Avascular necrosis | 28053 (29.8) | 81 | 76.6 | 49 |
Osteoarthrosis | 16380 (17.4) | 43 | 41.6 | 60 |
Malunion and nonunion of fracture | 1273 (1.4) | 52 | 37.2 | 65 |
Rheumatoid arthritis | 510 (0.5) | 21 | 58 | 55 |
Pathologic fracture | 370 (0.4) | 35 | 23 | 68 |
Congenital anteversion of femur | 349 (0.4) | 20 | 68 | 52 |
Ankylosing spondylitis | 314 (0.3) | 93 | 92 | 40 |
Pyogenic arthritis | 212 (0.2) | 67 | 65 | 52 |
Congenital dislocation | 127 (0.1) | 16 | 87 | 41 |
Other | 6451 (6.8) | |||