2. Each level of being is derived from its superior, a derivation that is not a process in time or space.
"The strength of language derives from its malleability," he added.
The tavern's name is derived from its function.
Its clout derives from its highly specialized position.
The origin of the town's name is uncertain, though it is believed that the name derives from a derivation of the name Aelfere, Aelfereton translates as the farm belonging to Aelfere or even of King Alfred.
To select the variables to include in the model, Cox proportional hazards regression analysis for 6-month mortality was fitted, using stepwise backwards selection, to determine the predictors to be included in the models from 50 bootstrapped samples derived from the derivation subset (nonparametric bootstrap procedure).
The order of risk groups derived from the derivation set was maintained in the internal and external validation.
This was carried out by applying the regression equation derived from the derivation sample to the validation sample to obtain a predicted calcium value for each subject.
The statistical analysis consisted of two steps: First, an optimized prediction score was derived from the derivation dataset with the aim to provide four distinct risk strata: high, moderate risk, low risk and very low risk.
Next, to evaluate the performance of the cut-off value of maximum IMT derived from the derivation cohort (n = 333; cut-off level of maximum IMT ≥2.45 mm), we applied this value to identify severe CAD in this validation cohort (n = 99) and examined its predictive ability.
Furthermore, we divided the subjects in this validation cohort into the nonelderly (younger than 65 years old, n = 54) and the elderly (65 years or older, n = 45) groups and evaluated the performance of the cut-off levels of maximum IMT derived from the derivation cohort (1.55 mm and 2.65 mm, respectively).
