Page 108 - The value of total hip and knee arthroplasties for patients

Chapter 6
Table 2. TKA: Final prediction models for the outcome function (KOOS ADL subscale)
Final prediction model for the outcome function (general outcome expectations (CEQ))
Variable
preoperative function
BMI
Mental health (SF-36 MSC)
Outcome expectations (CEQ expectancy)
B p
0.16 0.04 -1.07 0.00 0.41 0.00 1.18 0.00
95% CI
-1.61;-0.52 0.01;0.31 0.16;0.65 0.39;1.96
R2 for the final model:0.303
CEQ=credibility expectancy questionnaire, HSS= hospital for special surgery expectation surveys, KOOS= Knee injury and Osteoarthritis Outcome Score (KOOS), B= unstandardized Beta coefficient, 95%CI= 95% confidence interval.
Table 3. TKA: Final prediction models for the outcome pain (KOOS pain subscale)
Final prediction model for the outcome pain (general outcome expectations (CEQ))
Variable
BMI
Mental health
Outcome expectations (CEQ expectancy) R2 for the final model: 0.170
B p 95% CI
-1.00 0.00 -1.63;-0.38 0.42 0.04 0.14;0.71 0.80 0.09 -0.11;1.72
CEQ=credibility expectancy questionnaire, HSS= hospital for special surgery expectation surveys, KOOS= Knee injury and Osteoarthritis Outcome Score, ADL= activities of daily living B= unstandardized Beta coefficient, 95%CI= 95% confidence interval.
Table 4. THA: Final prediction models for the outcome function (HOOS ADL subscale)
Final prediction model for the outcome function in which the general outcome expectations (CEQ) score was included
Variable
Age
Baseline function (HOOS ADL)
Kellgren and Lawrence score
Outcome expectations (CEQ expectancy)
B p
-0.34 0.042 0.31 0.000 4.12 0.09 1.23 0.023
95% CI
-0.67 ; -0.01 0.14 ; 0.48 -0.63 ; 8.87 0.17 ; 2.29
R2 for the final model:0.186
CEQ=credibility expectancy questionnaire, HSS= hospital for special surgery expectation surveys, HOOS= Hip injury and Osteoarthritis Outcome Score, ADL= activities of daily living, B= unstandardized Beta coefficient, 95%CI= 95% confidence interval.
Table 5. THA: Final prediction models for the outcome postoperative pain (HOOS Pain subscale)
Final prediction model for the outcome pain in which the general outcome expectations (CEQ) score was included
variable
Baseline function (HOOS ADL)
Kellgren and Lawrence score
Outcome expectations (CEQ expectancy) R2 for the final model: 0.184
B p
0.33 0.00 3.72 0.090 0.98 0.049
95% CI
0.172;0.0477 -0.592;8.021 0.004;1.958
CEQ=credibility expectancy questionnaire, HSS= hospital for special surgery expectation surveys, HOOS= Hip injury and Osteoarthritis Outcome Score, ADL= activities of daily living, B= unstandardized Beta coefficient, 95%CI= 95% confidence interval.
106