GPT and metastatic neoplasm: Factors selected for inclusion in the multivariable model included age at presentation, history of exercise intolerance, history of weight loss, panting at presentation, heart rate at presentation, the absence of clinical examination abnormalities at presentation, serum alanine aminotransferase (ALT) activity, serum total protein concentration, evidence of abdominal metastatic disease documented via diagnostic imaging, and treatment group.