AFAP1 and gastric cancer: The results indicated that there was no relationship between the expression of AFAP1‐AS1 and age (p = 0.161), gender (p = 0.841), family history (p = 0.121) and serosal infiltration (p = 0.135) in GC tissues, but related with tumor sizes (p = 0.002), clinical stage (p = 0.003), lymph node metastasis (p = 0.006), differentiation (p < 0.001), pathologic tumor node metastasis (pTNM) (p = 0.001) and LODDS (p < 0.001) (Table 2).