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. Author manuscript; available in PMC: 2012 Jul 1.
Published in final edited form as: Osteoarthritis Cartilage. 2011 Mar 11;19(7):801–808. doi: 10.1016/j.joca.2011.03.003

Table 3.

Coefficients (95% confidence interval) and p-values for the hierarchical random-effects models for translations. The quadratic term (β2) was included in the model when significant. The random slope term (β4) was not significant for any translation and therefore not included. NS = not significant.

Coefficients Proximal Lateral Anterior
β0
(y-intercept, mm)		 31.77 (28.64, 34.90)
p < 0.001		 0.54 (−1.37, 2.45)
p = 0.579		 27.50 (26.21, 28.78)
p < 0.001
β1
(slope, mm / ° knee flexion)		 −0.531 (−0.574, −0.489)
p < 0.001		 −0.013 (−0.047, 0.022)
p = 0.468		 0.072 (0.034, 0.11)
p < 0.001
β2
(quadratic, mm / ° knee flexion2)		 NS 0.0007 (0.0003, 0.0010)
p < 0.001		 −0.0036 (−0.0039, −0.0033)
p < 0.001
β3:
(random intercept by condition, mm)
  0% load: no brace vs brace −0.67 (−1.05, 0.29)
p = 0.001		 −0.23 (−0.44, −0.02)
p = 0.031		 −0.51 (−0.68, −0.33)
p < 0.001
  15% load: no brace vs brace −1.09 (−1.48, −0.69)
p < 0.001		 −0.46 (−0.68, −0.25)
p < 0.001		 −0.47 (−0.64, −0.29)
p<0.001
  No brace: 0% load vs 15% load 0.31 (−0.07, 0.69)
p = 0.114		 0.22 (0.01, 0.44)
p = 0.042		 −0.06 (−0.23, 0.12)
p = 0.525
  Brace: 0% load vs 15% load −0.11 (−0.49, 0.28)
p = 0.586		 −0.01 (−0.22, 0.20)
p = 0.937		 −0.02 (−0.16, 0.19)
p = 0.866