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Table 1 Characteristics of patients

From: Predictors of pain and use of pain medications following primary Total Hip Arthroplasty (THA): 5,707 THAs at 2-years and 3,289 THAs at 5-years

  Primary THA
  2-year (n = 5,707) 5-year (n = 3,289)
Mean Age (± SD) 65.0 ± 13.3 64.7 ± 12.9
Men/Women (%) 49%/51% 47%/53%
Age groups n (%)   
   ≤ 60 yrs 30% 30%
   >60-70 yrs 31% 32%
   >70-80 yrs 30% 31%
   >80 yrs 9% 6%
Body Mass index (in kg/m2)   
   ≤ 24.9 24% 24%
   25-29.9 39% 40%
   30-34.9 24% 23%
   35-39.9 8% 8%
   ≥ 40 4% 4%
   Missing 1% 1%
ASA Score   
   Class I-II 62% 64%
   Class III-IV 38% 36%
   Missing 1% 1%
Cemented   
   Yes 11% 14%
   Hybrid 54% 59%
   Uncemented 35% 27%
Underlying Diagnoses   
   Rheumatoid Arthritis/Other Inflammatory arthritis conditions 3% 3%
   Osteoarthritis 87% 85%
   Avascular Necrosis 7% 8%
   Othera 4% 4%
  1. aOther category includes congenital dislocated hip, neoplasm, fracture, Legg-Calvé-Perthe's etc.