Table1.

General characteristics of the study.

Variables	Frequency	%
Sex
Male	2499	48
Female	2708	52
Total	5207	100
Age groups, y
<30	1398	26.8
31–40	1172	22.5
41–50	1001	19.2
>50	1636	31.4
Total	5207	100
BMI groups, kg/m2
<18.5	450	8.6
18.5–24.9	1897	36.4
25–29.9	1656	31.8
>30	881	16.9
Total	4884	93.8
Tobacco intake
Yes	366	7.0
No	4776	91.7

Abbreviation: BMI, body mass index.