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Table 1 Assessment and levels variables regarding physical activity, its domains, demographic, and risk-related factors used in the analysis

From: Physical activity profile of the Iranian population: STEPS survey, 2016

Physical activity

Variable name

Variable assessment

Variable levels/unit

Total physical activity

The sum of the total MET minutes of work-related, transport-related, and recreational activity

MET-minutes per week

Vigorous intensity physical activity

Self-reported physical activity that significantly increases the heart beat rate and continues for at least 10 min, in either domains of work or leisure

Minutes

Total work-related physical activity

Total work-related physical activity in minutes per week

Minutes per week

Total transport related physical activity

Total transport related physical activity in minutes per week

Minutes per week

Total recreational physical activity

Total recreational related physical activity in minutes per week

Minutes per week

Work no activity

Self-reporting of no moderate or vigorous work-related physical activity

Yes, No

Transport no activity

Self-reporting of no moderate or vigorous transport-related physical activity

Yes, No

Recreational no activity

Self-reporting of no moderate or vigorous recreational physical activity

Yes, No

Sedentary behavior

Self-report of total time spent in sedentary more than 4 h per day

Yes, No

Sociodemographic

 Sex

Report of the interviewer proofed by ID card

Male, Female

 Age

Report of the interviewee proofed by ID card and categorized by WHO recommendations.

18–24, 25–34, 35–44, 45–54, 55–64, 65–69, 70 ≤

 Residence area

Established geographical divisions of the country

Rural, Urban

 Marital status

Self-report

Married, Never married, Divorced or Living alone, Widow

 Occupation

Self-report

Non-paid or self-paid, Employee of governmental or non-governmental organization, Worker in a public or private section, Student, Soldier, Unemployed or Retired, Housekeeper

 Education

Self-report of number of completed education years

Illiterate, 1–6 years, 7–12 years, > 12 years

 Wealth index

Reduction of dimension in factor of wealth with PCA (Principle component analysis) model

1st (poorest), 2nd, 3rd, 4th, and 5th (richest) quintiles

Life style

 Appropriate fruit and vegetable consumption

Self-report of less than 2 units of fruit and 3 units vegetable consumption per day

Yes, No

 High salt intake

Self-report of equal or more than 5 g salt consumption per day

Yes, No

 Smoking

Self-report of ever daily smoking

Ever smoker, never smoker

 Alcohol consumption

Self-report of ever alcohol consumption in the last month

Yes, No

 Injury

Self-report: any accident resulting in outpatient emergency room management or hospital admission in the last 12 months

Yes, No

 Personal car ownership

Self-report of ownership of a personal car

Yes, No

Metabolic risk factors

 Hypertension

Self-report of past or present history of hypertension

Yes, No

 Past medical history of cardiovascular disease

Self-report past or present history of the myocardial infarction or cerebrovascular event in the past 12 months

Yes, No

 Diabetes mellitus

Fasting plasma glucose more than 126

Yes, No

 Dyslipidemia

Serum total cholesterol levels ≥200 mg/dl (≥5·2 mmol/liter)

Yes, No

 Abdominal obesity

Waist circumference more than 102 cm in men and 88 cm in women

Yes, No

 BMI (body mass index)

Calculated as measured weight in kilograms divided by square of measured height in meters

> 18·5: Underweight, 18·5–25: Normal, 25–30: Overweight, 30≤: Obese