Research Article

Integrating Biological Covariates into Gene Expression-Based Predictors of Radiation Sensitivity

Table 3

Change in Adj- value obtained by adding terms and complexity to the linear model. Results obtained with clinical indicators TO, RAS, and p53 are compared to Adj- values obtained using random variable for each indicator.

Model termsModel comparisonMean value
Clinical
  indicators
Random
variables

GeneEx : TOGenEx only versus additive0.254
Additive versus interaction0.134

GeneEx : RASGenEx only versus additive0.060
Additive versus interaction0.030

GeneEx : p53GenEx only versus additive0.026
Additive versus interaction0.016

GeneEx : TO : RASBasic versus additive0.256
Additive versus interaction0.272−0.213

GeneEx : TO : p53Basic versus additive0.262
Additive versus interaction0.198−0.211

GeneEx : RAS : p53Basic versus additive0.062
Additive versus interaction0.042

GeneEx : TO : RAS : p53Basic versus additive0.265
Additive versus interaction0.317−0.103