Table 1 Socio-demographic and behavioral characteristics of people who inject drugs in the 2020 National HIV Bio-behavioral.

From: The association between drug injection duration and hepatitis C prevalence among people who inject drugs in Iran

Variable

Hepatitis C virus

n (%)

Hepatitis C virus

RDS weighted (%)

Total

n (% within each variable)

RDS weighted (% within each variable)

P-value

Seronegative HCV

Seropositive HCV

Seronegative HCV

Seropositive HCV

Sex

 Female

75 (83.3)

15 (16.7)

82.1

17.9

90 (3.4)

4.7

0.055+

 Male

1880 (74.4)

684 (25.6)

72.3

27.7

2564 (96.6)

95.3

Education

 Under high school

1289 (70.7)

535 (29.3)

72.0

28.0

1824 (69.1)

68.2

< 0.001+

 High school or higher

660 (81.1)

154 (18.9)

80.3

19.7

814 (30.9)

31.8

Marital status

 Single

715 (76.4)

221 (23.6)

78.1

21.9

936 (36.6)

34.5

< 0.001+

 Currently married

501 (78.3)

139 (21.7)

77.6

22.4

640 (25.0)

26.0

 Widow/divorce

679 (69.3)

301 (30.7)

69.9

30.1

980 (38.3)

39.5

Lifetime history of homeless

 No

889 (77.8)

254 (22.2)

76.4

23.4

1143 (43.4)

45.3

< 0.001+

 Yes

1054 (70.8)

435 (29.2)

69.9

30.1

1489 (56.6)

54.7

HIV sero-status

 Negative

1957 (75.6)

632 (24.4)

73.3

26.7

2589 (96.5)

96.9

< 0.001+

 Positive

28 (29.5)

67 (70.5)

29.1

70.9

95 (3.5)

3.1

Ever injected methamphetamine

 No

1277 (78.1)

358 (21.9)

78.9

21.1

1635 (65.8)

66.7

< 0.001+

 Yes

563 (66.2)

288 (33.8)

65.8

34.2

851 (34.2)

33.3

Public injecting, last 12 months

 No

560 (77.2)

165 (22.8)

76.1

23.9

725 (30.4)

31.6

0.027+

 Yes

1213 (72.9)

450 (27.1)

73.0

27.0

1663 (69.6)

68.4

Ever shared needle/syringe with others

 No

1636 (78.8)

439 (21.2)

78.0

22.0

2075 (81.1)

80.2

< 0.001+

 Yes

250 (51.9)

232 (48.1)

52.6

47.4

482 (18.9)

19.8

Deprivation of health services due to drug use

 No

1046 (76.9)

314 (23.1)

74.9

25.1

1360 (53.4)

52.6

< 0.001+

 Yes

829 (69.9)

357 (30.1)

70.3

29.7

1186 (46.6)

47.4

Ever incarcerated

 No

777 (87.4)

112 (12.6)

88.2

11.8

889 (33.9)

34.1

< 0.001+

 Yes

1159 (66.7)

572 (33.0)

65.9

34.1

1731 (66.1)

65.9

The first experience of drug use through injecting drugs

 No

1851 (73.6)

665 (26.4)

75.2

24.8

2516 (95.3)

94.5

0.483+

 Yes

94 (76.4)

29 (23.6)

75.5

24.5

123 (4.7)

5.5

 

Mean (SD)

   
 

Median [Q1, Q3]*

   
 

Seronegative HCV

Seropositive HCV

Total

 

Age, years

39.0 (9.2)

43.6 (8.8)

40.2 (9.3)

< 0.001**

38.0 [33.0, 45.0]

43.0 [38.0, 49.0]

39.0 [34.0, 46.0]

Age at the first drug use, years

19.8 (5.3)

19.1 (4.7)

19.6 (5.1)

< 0.001**

19.0 [16.0, 22.0]

18.0 [16.0, 21.0]

19.0 [16.0, 22.0]

Time since onset of drug injection, years

19.2 (9.1)

24.5 (8.9)

20.6 (9.3)

< 0.001**

19.0 [12.0, 25.0]

24.0 [18.0, 30.0]

20.0 [14.0, 26.0]

  1. +Chi-square test.
  2. *Q1: the first quartile, Q3: the third quartile, SD: standard deviation.
  3. **Mann-Whitney U test.