Table 1 Descriptive statistics of variables used in the study

 35–44

46,112

35.7

 45–54

43,329

33.6

 55–64

31,150

24.2

 65 and older

8222

6.4

 Male

57,346

44.51

 Females

71,467

55.49

 Single

2926

2.27

 Married

117,116

90.91

 Divorced or widowed

8771

6.82

 1 (Poorest)

25,595

19.87

 2

25,703

19.94

 3

25,812

20.04

 4

25,826

20.09

 5 (Wealthiest)

25,877

20.10

Smoking status

 Smoker

25,877

21.68

 Non-smoker

100,880

78.32

Drinking alcohol

 Yes

11,674

9.10

 No

117,139

90.90

 Fars (FA)

22,257

17.28

 Guilan (GI)

10,498

8.15

 Kermanshah (KSH)

10,040

7.79

 East Azerbaijan (EA)

14,927

11.59

 Mazandaran (MA)

10,248

7.96

 Sistan and Balouchestan (SB)

8208

6.37

 Yazd (YA)

9272

7.20

 Kerman (KER)

9869

7.66

 Khouzestan (KH)

8987

6.97

 Chaharmahal and Bakhtiari (CB)

6642

5.16

 Hormozgan (HO)

3329

2.58

 West Azerbaijan (WA)

3444

2.67

 Ardabil (AR)

8180

6.35

 Razavi Khorasan (RK)

2921

2.27