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Table 2 Criteria used to define and calculate prevalence of risk factors

From: Individual-based primary prevention of cardiovascular disease in Cambodia and Mongolia: early identification and management of hypertension and diabetes mellitus

Risk factor variable Definition/numerator Denominator
Diabetes prevalence Respondents with survey-measured fasting blood glucose ≥ 6.1 mmol/l/110 mg/dl (whole blood); or measurement below threshold but respondent reporting insulin or other medication. All respondents aged 25-64 with biochemical measurements at time of survey
Hypertension prevalence Respondents with systolic blood pressure ≥ 140 mmHg or diastolic blood pressure ≥ 90 mmHg diastolic; or measurements below thresholds but respondent reporting anti-hypertensive medication. All respondents aged 25-64 with measurement of blood pressure at the time of survey
Hypercholesterolemia prevalence Measurement of total cholesterol ≥ 6.2 mmol/l (240 mg/dl) at the time of survey; or measurement below threshold but currently on medication for raised cholesterol. All respondents aged 25-64 with measurement of blood cholesterol at the time of survey
Physically underactive Physical inactivity assessed to be < 600 MET (metabolic equivalent) minutes per week as per the Global Physical Activity Questionnaire (GPAQ) scoring protocol[22, 25, 26]. All respondents aged 25-64 years
Overweight Body Mass Index ≥ 25 kg/m2. All aged 25-64 years with height and weight measured (pregnant women excluded)
Current smoking Respondents reporting positively to question "do you currently smoke any tobacco product such as cigarettes, cigars, or pipes" All respondents aged 25-64 years