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Table 3 Weighted seroprevalence of viral infections by selected sociodemographic characteristics and risk behaviors: Puerto Rico, 2005-2008.

From: Seroepidemiology of viral hepatitis, HIV and herpes simplex type 2 in the household population aged 21-64 years in Puerto Rico

Characteristics

Prevalence (%) (95% CI)

 

Anti-HCV

Anti-HBV

Anti-HAV

Anti-HIV

Anti-HSV-2

Age in years

     

   21-29

2.3 (0.8 - 6.6)

1.2 (0.4 - 3.3)a

8.2 (5.1 - 12.7)c

*b, d

14.8 (10.5 - 20.3)c

   30-39

2.5 (1.2 - 4.9)

2.7 (1.3 - 5.4)

13.9 (9.9 - 19.2)

1.0 (0.3 - 3.5)

15.5 (10.7 - 21.8)

   40-49

2.7 (1.3 - 5.4)

3.6 (2.1 - 6.2)

49.4 (41.7 - 57.2)

1.7 (0.6 - 4.7)

29.1 (24.2 - 34.5)

   50-64

1.3 (0.4 - 4.4)

5.4 (3.3 - 8.6)

89.0 (84.6 - 92.2)

0.7 (0.2 - 2.0)

29.0 (23.3 - 35.4)

Sex

     

   Female

1.0 (0.4 - 2.1)b

2.5 (1.6 - 3.9)

41.3 (36.7 - 46.0)

0.8 (0.3 - 2.0)

25.6 (21.5 - 30.2)b

   Male

4.0 (2.3 - 6.8)

4.3 (2.7 - 6.8)

41.5 (36.7 - 46.5)

1.0 (0.4 - 2.4)

17.8 (14.3 - 22.1)

Years of education

     

   ≥ 12

2.2 (1.3 - 3.6)

2.5 (1.7 - 3.9)a

35.8 (32.3 - 39.4)c

0.6 (0.2 - 1.5)

20.2 (17.2 - 23.5)b

   < 12

2.3 (1.0 - 5.3)

5.7 (3.7 - 8.6)

59.3 (54.5 - 63.9)

1.7 (0.7 - 4.3)

29.3 (22.8 - 36.8)

Annual family income

     

   ≥ $20,000

1.4 (0.4 - 4.4)

1.1 (0.5 - 2.6)b

32.9 (28.6 - 37.5)c

1.1 (0.4 - 3.4)

16.9 (12.8 - 21.9)b

   < $20,000

2.3 (1.3 - 4.0)

4.0 (2.9 - 5.6)

45.9 (41.8 - 50.1)

0.6 (0.2 - 1.6)

25.9 (21.8 - 30.5)

Health care coverage

     

   Private

0.4 (0.2 - 0.9)c

2.2 (1.3 - 3.7)

43.8 (38.9 - 48.9)

0.8 (0.2 - 2.3)

17.3 (14.0 - 21.3)c

   Public

4.1 (2.4 - 6.9)

4.5 (3.0 - 6.7)

40.6 (36.0 - 45.3)

0.8 (0.3 - 1.9)

27.6 (23.0 - 32.6)

   None

2.9 (0.8 - 9.6)

3.4 (1.4 - 8.2)

33.9 (24.2 - 45.1)

1.6 (0.3 - 7.8)

24.0 (16.5 - 33.6)

Age at first sexual intercourse

     

   < 12

10.2 (3.3 - 27.2)c

15.2 (5.7 - 34.5)b

57.2 (38.8 - 73.8)

2.0 (0.5 - 8.4)

33.1 (18.7 - 51.6)

   12-17

3.6 (2.0 - 6.1)

3.7 (2.4 - 5.7)

38.3 (33.9 - 42.9)

0.9 (0.4 - 2.3)

23.9 (19.4 - 29.2)

   ≥ 18

0.5 (0.2 - 1.1)

1.9 (1.1 - 3.3)

43.2 (38.9 - 47.6)

0.3 (0.1 - 1.6)

20.1 (16.4 - 24.4)

Number of lifetime sexual partners

     

   0-1

0.7 (0.1 - 3.3)c

1.9 (0.9 - 4.0)

50.9 (44.3 - 57.6)b

*d

11.5 (7.9 - 16.5)c

   2-9

1.2 (0.6 - 2.6)

2.7 (1.8 - 4.2)

37.4 (33.5 - 41.4)

0.9 (0.4 - 2.3)

24.1 (20.1 - 28.6)

   ≥ 10

5.5 (3.0 - 9.8)

4.6 (2.6 - 8.0)

41.5 (33.2 - 50.3)

0.7 (0.2 - 1.9)

25.1 (19.9 - 31.1)

Men who have sex with men

     

   Never

4.0 (2.3 - 6.9)

4.3 (2.6 - 7.1)

41.2 (36.3 - 46.2)

0.3 (0.1 - 0.9)c

16.8 (12.9 - 21.5)

   Ever

2.6 (0.7 - 9.3)

3.1 (0.7 - 13.0)

49.9 (31.9 - 67.9)

7.3 (1.9 - 24.5)

22.0 (11.5 - 38.1)

Lifetime drug use

     

   None

0.6 (0.2 - 1.6)c

2.6 (1.7 - 3.9)c

47.7 (44.1 - 51.4)c

0.7 (0.3 - 1.9)

20.3 (16.6 - 24.5)

   Non-IDU

1.8 (0.9 - 3.5)

3.5 (2.1 - 5.8)

29.3 (24.3 - 34.9)

1.0 (0.4 - 2.8)

25.4 (20.9 - 30.6)

   IDU

76.1 (55.2 - 89.1)

23.5 (8.8 - 49.3)

66.9 (42.9 - 84.5)

2.8 (0.6 - 12.4)

31.9 (10.3 - 65.5)

Tattooing practice

     

   Never

0.9 (0.5 - 1.6)c

2.9 (2.0 - 4.0)

43.7 (40.4 - 47.0)c

0.6 (0.3 - 1.4)

21.8 (18.2 - 25.8)

   Ever

10.2 (6.0 - 16.8)

5.6 (2.8 - 11.1)

27.5 (21.4 - 34.6)

2.2 (0.6 - 7.1)

26.2 (19.8 - 33.9)

Body piercing

     

   Never

1.4 (0.8 - 2.6)a

3.6 (2.5 - 5.1)

48.9 (45.2 - 52.7)c

1.0 (0.5 - 2.2)

23.0 (20.0 - 26.4)

   Ever

4.0 (2.1 - 7.5)

2.7 (1.3 - 5.6)

24.4 (19.9 - 29.6)

0.5 (0.1 - 2.1)

21.0 (15.8 - 27.5)

Blood transfusions prior to 1992

     

   Never

2.0 (1.2 - 3.2)b

2.9 (2.1 - 4.0)b

40.1 (37.1 - 43.3)c

0.4 (0.2 - 1.0)c

21.9 (18.6 - 25.6)

   Ever

6.3 (2.5 - 14.6)

11.6 (5.3 - 23.6)

65.2 (52.7 - 75.8)

9.2 (3.4 - 22.8)

31.2 (19.6 - 45.7)

History of other STIse

     

   Yes

2.7 (0.7 - 9.1)

4.9 (2.2 - 10.7)

47.3 (35.0 - 59.8)

5.9 (1.9 - 16.5)b

33.9 (22.7 - 47.3)a

   No

2.2 (1.3 - 3.6)

3.2 (2.3 - 4.5)

41.1 (37.9 - 44.3)

0.6 (0.3 - 1.4)

21.9 (18.6 - 25.6)

History of imprisonment

     

   Never

0.8 (0.4 - 1.5)c

2.6 (1.8 - 3.7)b

41.2 (37.8 - 44.7)

0.6 (0.2 - 1.3)b

21.1 (18.1 - 24.5)b

   Ever

17.5 (11.4 - 26.1)

11.2 (5.4 - 21.7)

43.0 (33.5 - 53.0)

4.1 (1.4 - 10.9)

36.0 (25.4 - 48.0)

  1. aP < 0.05; bP < 0.01; cP < 0.001.
  2. dIndicates a relative standard error of 30% or more, thus this reflects a potentially unreliable estimate and is not shown.
  3. eSelf-reported history of syphilis, gonorrhea, genital warts, and chlamydia infection.