The results of univariate analysis suggested that postoperative recurrence and metastasis were closely correlated with tumor rupture, primary tumor site, tumor size, mitotic count, and risk classification (P < 0.05), but not with age, gender, body mass index, drinking, smoking, presence of gastrointestinal bleeding, presence of malignant tumors, and Ki-67 (P > 0.05). The gene discussed is MKI67; the disease is cancer.