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Table 1 Characteristics of participants

From: Patient-reported quality of life after primary major joint arthroplasty: a prospective comparison of hip and knee arthroplasty

  TKA (n = 204) THA (n = 174)
Demographics
 Age, mean ± SD years 69.17 ± 6.69 64.98 ± 11.1
 Female, No. (%) 162 (79.4) 118 (67.8)
 Absence of social support, No. (%) 36 (17.6) 28 (16)
 Education level   
  Elementary or less, No. (%) 130 (63.7) 97 (55.7)
  Residence: Rural, No. (%) 86 (42.1) 37 (21.3)
Medical Status
 BMI, mean ± SD kg/m2   
  ≥ 30, No. (%) 108 (52.9) 48 (23.4)
 Charlson comorbidity scale* 1.6 (1.5) 1.2 (0.7)
 LOS (days) 6.68 ± 1.3 8.0 ± 3.1
  1. BMI body mass index, LOS length of stay
  2. *Charlson comorbidity scale, 0–27 (higher scores indicate more comorbid illness)