Table 2 Comparison of pre-research similarities between groups

Age (X ± SS)

32.43 ± 11.4

31.60 ± 11.4

U = 114.000**

Z=–0.238

p = 0.812

Education level

X² = 0.896*

df = 1

p = 0.344

Elementary/high school

8

44.4

4

23.5

Associate/bachelor’s degree

10

55.6

13

76.5

Occupation

X² = 0.010*

df = 1

p = 0.921

Private sector

14

77.8

12

74.3

Unemployed-retired

4

22.2

5

29.4

Marital status

X² = 4.531⁺

df = 2

p = 0.104

Married

5

27.8

10

58.8

Single

11

61.1

7

41.2

Divorced

2

11.1

0

0

Children

X² = 0.229⁺

df = 1

p = 0.632

Yes

5

27.8

6

35.3

No

13

72.2

11

64.7

Longest place of residence

X² = 1.513*

df = 1

p = 0.219

Village-district-town

3

16.7

7

41.2

City-metropolitan City

15

83.3

10

58.8

Substance addicted to

X² = 0.230⁺

df = 1

p = 0.631

Alcohol

6

33.3

7

41.2

Substance

12

66.7

10

58.8

Criminal history under substance influence

X² = 0.846⁺

df = 1

p = 0.358

Yes

10

55.6

12

70.6

No

8

44.4

5

29.4

Domestic violence history under substance influence

X² = 1.418*

df = 1

p = 0.234

Yes

4

32.2

8

47.1

No

14

77.8

9

52.9

Loss of employment in the last year

X² = 2.753*

df = 1

p = 0.097

Yes

9

50.0

3

35.3

No

9

50.0

14

64.7