GPT and diabetes mellitus: The results showed statistically significant differences in age, gender, Body Mass Index(BMI), marital status, family history of hypertension, family history of diabetes mellitus, salt, meat intake, smoking status, drinking status, shift work situation, Occupational heat, noise, hemoglobin, uric acid(UA), alanine transaminase(ALT), etc. (P < 0.05), are shown in Tables 1, 2, 3 and 4.