ENO2 and bone metastasis: Univariate Cox regression analysis revealed several statistically significant predictors for survival (P < 0.05), including age, gender, marital status, smoking history, drinking history, family history, BMI, gene mutation, TNM staging, CEA, CYFBA, NSE, SCC, D-dimer, white blood cells, neutrophils, lymphocytes, monocytes, red blood cells, hemoglobin, platelets, NLR, LMR, PLR, bone metastasis, brain metastasis, liver metastasis, lung metastasis, chemotherapy, radiotherapy, immunotherapy, and targeted therapy.