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. 2010 May 26;10:31. doi: 10.1186/1471-2466-10-31

Table 3.

Maximum likelihood estimates for the linear mixed model to estimate peak VO2 from 6-minute walk distance.

Parameter M-I: Random Intercept Estimate ± SEE M-II: Random Coefficient Estimate ± SEE
Fixed Component

Intercept 4.626 ± 0.516 4.948 ± 0.990

6-Minute Walk 0.024 ± 0.001 0.023 ± 0.002

SEE(AVG) 3.82 3.82

Random Component

Intercept(SD) 0.91 ± 0.25 2.80 ± 0.79

Slope(SD) 0.01 ± >0.01

R(Slope, Intercept) -0.94 ± 0.05

SEE(CON) 3.73 ± 0.08 3.66 ± 0.08

Log likelihood -2972.51 -2964.69