Through univariate logistic regression analysis, the study included many potential factors, including gender, age, BMI, history of hypertension, history of coronary heart disease, history of diabetes, bad habits of smoking and alcohol, tumor type, serum CTC count, serum albumin, NLR, ferritin, CEA, CA199, CA125, CA72-4, and CK-7. This evidence concerns the gene KRT7 and diabetes mellitus.