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Table 3 Distribution of survey results and claims data in patient groups willing and unwilling to undergo TJR

From: Which disease-related factors influence patients’ and physicians’ willingness to consider joint replacement in hip and knee OA? Results of a questionnaire survey linked to claims data

  Symptomatic Hip OA Symptomatic Knee OA
Variable Willing for TJR
n = 79,
17% (weighted)
Unwilling for TJR n = 388,
83% (weighted)
Willing for TJR
n = 127
14% (weighted)
Unwilling for TJR
n = 783
86% (weighted)
Age (years), mean 63 (61; 66) 65 (64; 66) 65 (64; 67) 65 (64; 65)
Female 63 (50; 76) 63 (58; 68) 63 (54; 72) 68 (66; 71)
BMI (kg/m2), mean 27 (26; 28) 28 (27; 28) 30 (29; 30) 29 (29; 30)
BMI < =18.5 . (.;.) 2 (0; 5) . (.;.) 1 (0; 1)
18.5 < BMI < =25 37 (22; 52) 31 (25; 38) 14 (6; 21) 21 (17; 25)
25 < BMI < =30 43 (29; 57) 41 (34; 48) 49 (38; 59) 41 (37; 45)
BMI > 30 20 (10; 30) 26 (20; 32) 38 (27; 48) 37 (33; 41)
Symptom duration (years), mean 14 (10; 18) 14 (12; 16) 17 (14; 19) 14 (13; 15)
Deterioration of symptoms (during last 2 years) 80 (67; 93) 59 (53; 66) 80 (72; 89) 53 (49; 57)
WOMAC total, mean 52 (46; 57) 40 (37; 42) 52 (49; 56) 39 (37; 41)
WOMAC pain, mean 51 (45; 57) 41 (38; 43) 53 (50; 56) 40 (38; 42)
WOMAC function, mean 51 (46; 57) 38 (36; 41) 51 (48; 55) 37 (36; 39)
WOMAC stiffness, mean 52 (45; 60) 43 (40; 46) 57 (53; 61) 43 (41; 45)
Any impact on personal situation 99 (96; 100) 75 (69; 81) 95 (90; 100) 75 (71; 79)
WHO-5 49 (42; 56) 51 (47; 54) 44 (39; 49) 52 (50; 54)
Orthopaedist is treating 78 (65; 92) 60 (53; 67) 78 (69; 86) 71 (67; 75)
Opioid prescriptiona 13 (2; 23) 14 (9; 19) 22 (13; 30) 12 (9; 15)
Daily use of medication 28 (15; 41) 26 (20; 32) 37 (27; 47) 20 (17; 24)
Physical therapy prescriptiona 50 (35; 65) 45 (38; 52) 54 (43; 64) 47 (43; 51)
Having at least one artificial joint 53 (38; 67) 17 (12; 23) 41 (31; 52) 16 (13; 19)
  1. Values are percentages unless indicated otherwise. Values in brackets are 95% confidence intervals. a indicates information derived from claims data