highly significantp < 0.0001
Screening effectiveness and variable significance For Step 1 models with no interaction terms, Age plus all five transformed trend variables and their squares were highly significant ( p < 0.0001), as shown in Table 2 .
Screening effectiveness and variable significance For Step 1 models with no interaction terms, Age plus all five transformed trend variables and their squares were highly significant ( p < 0.0001), as shown in Table 2 .