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Table 3 WOMAC dimension scores at baseline and 12 months after THA and TKA

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

  THA WOMACa TKA WOMACa
PAIN FUNCTION STIFFNESS PAIN FUNCTION STIFFNESS
Pre-op 12 m Pre-op 12 m Pre-op 12 m Pre-op 12 m Pre-op 12 m Pre-op 12 m
post-op post-op post-op post-op post-op post-op
GENDER             
 Men 10.7 (3.9) 1.0 (2.1) 42.3 (4.8) 12.6 (9.3) 3.0 (1.1) 0.9 (1.1) 10.3 (4.5) 1.6 (2.4) 34.7 (14.1) 7.5 (9.4) 3.6 (1.8) 0.7 (0.9)
 Women 12.5 (3.5)* 1.3 (2.2) 46.1 (5.7)** 12.8 (8.0) 4.7 (1.5) 0.7 (1.0) 12.2 (3.8)* 1.4 (2.4) 39.6 (10.1)* 7.2 (8.1) 4.2 (1.5) 0.8 (1.1)
AGE             
  < 65 12.0 (3.6) 1.4 (1.5) 45.1 (5.7) 12.4 (8.1) 4.0 (1.4) 0.8 (0.9) 12.4 (3.4) 1.3 (1.9) 37.8 (12.4) 5.3 (6.7) 3.9 (1.7) 0.7 (0.9)
  ≥ 65 11.9 (3.7) 1.0 (1.1) 45.2 (5.5) 13.1 (8.6) 4.1 (1.5) 0.7 (1.0) 11.6 (4.2) 1.7 (2.5) 38.6 (10.9) 7.9 (8.8) 4.1 (1.6) 0.9 (1.1)
BMI             
  < 30 10.6 (3.8) 1.0 (1.0) 44.0 (5.3) 12.2 (8.6) 4.2 (1.5) 0.7 (0.6) 11.1 (4.1) 1.5 (2.2) 36.2 (11.6) 6.4 (8.1) 3.9 (1.6) 0.8 (1.0)
  ≥ 30 13.2 (3.1)** 1.7 (1.8) 48.3 (5.4)** 14.3 (9.0) 4.1 (1.4) 0.9 (0.8) 12.4 (3.8)* 1.7 (2.6) 40.5 (10.6)* 7.9 (8.6) 4.2(1.6) 0.9 (1.0)
EDUCATION             
 Low (elementary or less) 13.1 (4.1) 0.7 (0.1) 46.3 (5.3) 10.9 (8.8) 4.1 (1.6) 0.4 (0.3) 12.3 (4.2) 1.1 (1.5) 42.1 (10.7) 6.4 (7.7) 4.6 (1.3) 0.9 (1.1)
 High 11.9 (3.6) 1.2 (0.1) 45.1 (5.6) 11.8 (8.6) 4.0 (1.3) 0.8 (0.6) 11.7 (3.9) 1.7 (2.5) 37.9 (11.3) 7.4 (8.5) 3.9 (1.6) 0.5 (0.7)
SOCIAL SUPPORT             
 Yes 11.8 (3.7) 1.3 (1.1) 45.1 (5.8) 13.1 (7.0) 4.0 (1.4) 0.8 (0.7) 11.8 (4.1) 1.5 (2.3) 38.3 (11.9) 7.0 (8.5) 4.1 (1.6) 0.8 (1.0)
 No 12.8 (3.6) 0.9 (1.4) 45.6 (4.8) 11.2 (6.9) 4.3 (1.5) 0.5 (0.3) 11.7 (3.5) 2.1 (2.9) 39.5 (7.3) 8.4 (8.1) 3.9 (1.6) 0.9 (1.1)
RESIDENCE             
 Rural 12.9 (3.7) 1.4 (1.5) 45.4 (5.9) 14.0 (9.8) 4.1 (1.2) 0.9 (1.0) 11.7 (4.5) 1.7 (2.4) 38.7 (12.7) 7.2 (8.1) 4.1 (1.5) 0.9 (1.1)
 Urban/semi- 11.7 (3.6) 1.1 (1.1) 45.1 (5.5) 12.3 (8.4) 4.1 (1.0) 0.7 (1.0) 11.9 (3.7) 2.1 (2.8) 38.4 (10.3) 8.3 (9.3) 4.0 (1.7) 0.7 (0.9)
  1. WOMAC scores: pain 0–20, function 0–68, stiffness 0–8; higher scores indicate greater difficulties
  2. aValues are mean ± SD, *P ≤ 0.05, **P ≤ 0.005