Screening month 1 | Baseline month 1–2 | First follow-up 6 months | Second follow-up 12 months | Third follow-up 18 months | |
Screening (age, sex, family history of diabetes, occupational characteristics, physical measurements (height, weight, waist circumference) | X | ||||
Demographics (age, sex, education, marital status) | X | ||||
Lifestyle (smoking, drinking, physical activity) | X | X | X | X | |
Diet (24-hour dietary recall) | X | X | X | X | |
Physical measurement (height, weight, waist circumference) | X | X | X | X | |
Blood pressure | X | X | X | X | |
Biochemical measurement (HbA1c, fasting glucose, HDL, LDL, total cholesterol, triglycerides) | X | X | X | X |
HDL, high-density lipoprotein; LDL, low-density lipoprotein.