marginally significantP = .065
On the basis of the analysis of prognostic differences (Figure 6 D), the differences in prognosis between 4 subtypes were marginally significant ( P = .065), and the prognosis of C4 subtype was markedly poorer than that of the other subtypes; as shown by further analysis, the prognosis of C3 subtype was clearly better than that of C4 subtype (Figure 6 E), which was consistent with the validation dataset. 3.8.