marginally significantP =6.8 × 10 −2
In public validation sets for samples with PFS information ( n =91), the Class-1 membership was associated with better prognosis in univariate analysis ( P =1.4 × 10 −3 ), shown as Figure 2 , and still marginally significant association with multivariate analysis ( P =6.8 × 10 −2 , n =57).