We observed a tendency between age and FGF9 expression levels in GC patients (χ2 = 5.634, P = 0.018), but no significance was found between FGF9 expression level and other clinicopathological variables, including gender, site, TNM, tumour size, nodal status, metastasis status and tumour invasion (Table 2). The gene discussed is FGF9; the disease is neoplasm.