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Table 2 The relationship of gender, age, and percentage of patients to hip disease of primary partial hip replacement, in the NHI research database 1996–2004.

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

  All primary partial hip replacement/Revision (55,859/1,201)
Hip disease Number (%) Revision (%) Men (%) Age < 60 years (%) Mean age in years (range) Revision Rate %
Femoral neck fractures 39557 (70.8) 577 (48) 34 4 76 1.5
Avascular necrosis 10066 (18.0) 431 (36) 84 83 48 4.3
Osteoarthrosis 448 (0.8) 18 (1.5) 53 49 60 4.0
Other 5788 (10.4) 175 (14.5)     3.0