Among the studies of GH level and gastric cancer, researchers should pay close attention to the nutritional status of such patients by detecting serum albumin and the Nutritional Risk Screening 2002 (NRS2002) or Patient-generated Subjective Global Assessment (PG-SGA) score, so as to avoid malnutrition-related GH elevation as a confounding factor (35). This evidence concerns the gene GH1 and gastric cancer.