n

%

Gender

Males

Females

9

2

81.8

18.2

Age (year old)

Mean ± Standard deviation

42.3 ± 0.41

Marital status

Married

Unmarried

9

2

81.8

18.2

Living with family

Yes

No

10

1

90.9

9.1

Level of education

High school

Vocational

Degree or higher

2

1

8

18.2

9.1

72.7

History of present illness

Yes

No

4

7

36.4

63.6