Figure 1From: Test on existence of histology subtype-specific prognostic signatures among early stage lung adenocarcinoma and squamous cell carcinoma patients using a Cox-model based filter Scenarios of the Cox-model filter and their interpretation. β2 and β3 are the coefficients for the gene term and gene × subtype interaction term in Equation 1, and they are the parameters of interest. Ideally, non-overlap of genes fitting case B and those fitting case E suggests existence of mutually exclusive subtype-specific prognostic genes. Character A-G represent different situations (or cases) for the proposed model.Back to article page