Table 1 Socio-demographic characteristics of patients with SLE (n = 134)

Age

(Mean, SD, range)

(37.9, 12.5, 18–66)

18–24

22

16.4

25–36

45

33.6

37–60

61

45.5

More than 60

6

4.5

Gender

Male

8

6.0

Female

126

94.0

Education

Junior high school and below

47

35.1

High school

53

39.6

University’s degree

34

25.4

Occupation

Outside work/physical work

61

45.5

Skilled work/office work

36

26.9

Others

37

27.6

Marital status

Married

104

77.6

Others

30

22.4

Children

(Mean, range)

(1.5, 0–4)

Monthly income (n = 128)

(Mean, SD) in VND

(7,756,250, 534,541.1)

(US$1 = 23,165.27 VND as of 17th November 2019)

Drinking

Yes

8

6.0

I ever had, but quit.

9

6.7

Never

117

87.3

Smoking

Yes

2

1.5

I ever had, but quit

3

2.2

Never

129

96.3