Table 9. Ordinal Logistic Regression of Model B (AAI)

Test that all slopes are zero:P  value < 0.001.

θ^1–5= constants of the ordinal logistic regression model used in the prediction of the OAA/S levels 1 to 5; βremi = coefficient of the ordinal logistic regression model multiplied with the remifentanil (remi) effect-site concentration in the prediction equation; βprop = coefficient of the ordinal logistic regression model multiplied with the propofol (prop) effect-site concentration in the predication equation; βAAI = coefficient of the ordinal logistic regression model multiplied with the AAI in the prediction equation; SD = standard deviation.