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Table 4 Unstandardized regression coefficients, B (95% CI) on WOMAC function and total physical activity (TKA cohort)

From: The six-minute walk test is an excellent predictor of functional ambulation after total knee arthroplasty

Independent Variable Dependent Variable
  WOMAC function P Physical Activity P
Model 1 (n = 28) R2 = 0.55 <0.001 R2 = 0.36 0.01
 BMI 0.67 (−1.27 to 2.61) 0.48 4.11 (−10.68 to 18.89) 0.57
 Gender −14.23 (−34.93 to 6.47) 0.17 45.06 (−112.70 to 202.77) 0.56
 TUG 6.58 (3.16 to 10.0) <0.001 −42.46 (−68.52 to −16.40) 0.003
Model 2 (n = 32) R2 = 0.34 0.01 R2 = 0.16 0.18
 BMI 0.40 (−1.83 to 2.62) 0.72 3.14 (−12.64 to 18.92) 0.69
 Gender −15.14 (−38.30 to 8.03) 0.19 14.23 (−150.10 to 178.51) 0.86
 6MW distance −0.10 (−0.20 to −0.01) 0.04 0.67 (0.00 to 1.35) 0.05
Model 3 (n = 32) R2 = 0.34 0.01 R2 = 0.16 0.19
 BMI 0.33 (−1.90 to 2.57) 0.76 3.44 (−12.47 to 19.34) 0.66
 Gender −16.39 (−39.17 to 6.40) 0.15 23.39 (−138.89 to 185.64) 0.77
 30MW distance −0.02 (−0.03 to −0.001) 0.04 0.10 (−0.02 to 0.21) 0.05
  1. Abbreviations:
  2. 6MW = Six-minute walk; 30MW = 30-minute walk; BMI = Body mass index; CI = Confidence interval; N = number; TKA = Total knee arthroplasty; TUG = Timed Up and Go; WOMAC = Western Ontario and McMaster Universities Osteoarthritis Index.