Osaka Cardiometabolic Epidemiological Study: Ohtori Study Part 2

Type 2 diabetes is diagnosed based on the results of a fasting blood glucose test and medication history.

Type 2 diabetes at baseline and follow-up examination is defined if the fasting plasma glucose level is ≥126 mg/dL, if the A1c level is ≥6.5%, or if the participant is taking medications or using injectables such as insulin to lower blood glucose levels at the baseline and follow-up examinations.

Hypertension is diagnosed based on the results of blood pressure measurement and medication history.

Hypertension is diagnosed if the systolic blood pressure is ≥140 mmHg, the diastolic blood pressure is ≥90 mmHg, or the participant is taking antihypertensive medications.

Dyslipidemia is diagnosed based on the National Cholesterol Education Program (NCEP) Adult Treatment Panel III guidelines.

Dyslipidemia is diagnosed based on the following criteria:Total cholesterol: ≥200 mg/dL (high); LDL cholesterol: ≥130 mg/dL (high); HDL cholesterol: \<40 mg/dL (low in men), \<50 mg/dL (low in women); or triglycerides: ≥150 mg/dL (high).

Metabolic syndrome is diagnosed based on the Joint Interim Statement published in Circulation. 2009 Oct 20;120(16):1640-5.

An individual is diagnosed with metabolic syndrome if they meet three or more of the following criteria: 1. Abdominal obesity (waist circumference): Men: ≥90 cm Women: ≥80 cm 2. Elevated triglycerides: Triglycerides ≥150 mg/dL, or receiving treatment for elevated triglycerides. 3. Low HDL cholesterol: Men: \<40 mg/dL Women: \<50 mg/dL, or receiving treatment for low HDL cholesterol. 4. Elevated blood pressure: Systolic blood pressure ≥130 mmHg, diastolic blood pressure ≥85 mmHg, or receiving antihypertensive treatment. 5. Elevated fasting blood glucose: Fasting blood glucose ≥100 mg/dL, or receiving treatment for elevated blood glucose.