Table 1.

Questionnaire on lifestyle habits

A. How often do you exercise (30-minute walk or equivalent)?
1. Not at all	2. No exercise but walk in office or house	3. Once a week	4. 2–3 times a week	5. More than 4 times a week
B. Do you smoke?
1. Daily smoking for ≥10 years	2. Daily smoking for <10 years	3. Quit smoking within 1 year	4. Quit smoking >1 year ago	5. Never have smoked
C. Do you drink alcohol?
1. More than 4 times a week	2. 2–3 times a week	3. Once a week	4. Sometimes	5. Never
D. How long do you sleep every day?
1. Less than 4 hours	2. 4–5 hours	3. 5–7 hours	4. 7–8 hours	5. More than 8 hours
E. Do you feel mental stress?
1. Strongly agree	2. Agree	3. Undecided	4. Disagree	5. Strongly disagree
Questions about food habits
F. Do you eat a lot of vegetables?
1. Strongly disagree	2. Disagree	3. Undecided	4. Agree	5. Strongly agree
G. Do you eat breakfast every morning?
1. Strongly disagree	2. Disagree	3. Undecided	4. Agree	5. Strongly agree
H. Do you eat moderately? (Do you eat until you are 80% full?)
1. Strongly disagree	2. Disagree	3. Undecided	4. Agree	5. Strongly agree
I. Do you avoid eating oily food?
1. Strongly disagree	2. Disagree	3. Undecided	4. Agree	5. Strongly agree
J. Do you avoid eating processed foods?
1. Strongly disagree	2. Disagree	3. Undecided	4. Agree	5. Strongly agree
K. Do you avoid eating sugary food (cakes and candies)?
1. Strongly disagree	2. Disagree	3. Undecided	4. Agree	5. Strongly agree
L. Do you eat vegetables at the start of meals?
1. Strongly disagree	2. Disagree	3. Undecided	4. Agree	5. Strongly agree