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Table 3 The relationship of gender, age, and percentage of patients to hip disease of primary total hip replacement, in the NHI research database 1996–2004.

From: Incidence of hip replacement among national health insurance enrollees in Taiwan

  All primary total hip replacement/Revision (38,323/1,905)
Hip disease Number (%) Revision (%) Men (%) Age < 60 years (%) Mean age in years (range) Revision Rate %
Femoral neck fractures 586 (1.5) 22 (1.2) 48 18 70 3.8
Avascular necrosis 17987 (46.9) 765 (40.2) 79 73 50 4.3
Osteoarthrosis 15932 (41.6) 858 (45.0) 43 41 60 5.4
Other 3818 (10.0) 260 (13.6)     6.8