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Table 2 Behavioral characteristics and prevalence of sexually transmitted diseases among the HIV-negative high-risk MSM that participated in the cross-sectional study.

From: Seroprevalence and factors associated with herpes simplex virus type 2 among HIV-negative high-risk men who have sex with men from Rio de Janeiro, Brazil: a cross-sectional study

Characteristic

Number* (%)

Sexual orientation

 

Homosexual

181 (45.5)

Bisexual

217 (54.5)

Age at first sexual intercourse

 

< 12

82 (20.7)

12–15

190 (48.0)

16–18

90 (22.7)

> 18

34 (8.6)

Age at first sexual intercourse with man

 

< 12

33 (13.3)

12–15

76 (30.5)

16–18

83 (33.3)

> 18

57 (22.9)

Age at first sexual intercourse with woman

 

< 12

16 (6.3)

12–15

120 (47.2)

16–18

87 (34.3)

> 18

31 (12.2)

First sexual intercourse with

 

Man

96 (23.8)

Woman

307 (76.2)

Exchange of sex for money

 

Never

228 (56.6)

Sometimes

175 (43.4)

Sex with a woman

 

Never

140 (34.7)

Sometimes

263 (65.3)

Sex with a woman in the past 6 months

 

Yes

101/403 (25.1)

Occasional male partner in the past 6 months

 

Yes

267/403 (66.3)

Stable male partner in the past 6 months

 

Yes

228/403 (56.6)

Unprotected anal sex with stable male partner in the past 6 months

 

Yes

136/403 (33.7)

Unprotected anal sex with occasional male partner in the past 6 months

 

Yes

222/403 (55.1)

Unprotected vaginal sex with stable female partner in the past 6 months

 

Yes

71/388 (18.3)

Unprotected anal sex with stable female partner in the past 6 months

 

Yes

34/390 (8.7)

Unprotected vaginal sex with occasional female partner in the past 6 months

 

Yes

51/390 (13.1)

Unprotected anal sex with occasional female partner in the past 6 months

 

Yes

36/389 (9.3)

Alcohol use during sexual encounter in the past 6 months

 

Yes

202/382 (52.9)

Cocaine use during sexual encounter in the past 6 months

 

Yes

41/362 (11.3)

Herpes simplex virus type 2

 

Yes

184/403 (45.7)

Active syphilis**

 

Yes

31/403 (7.7)

Positive serology for syphilis**

 

Yes

140/403 (34.7)

Positive serology for Hepatitis B***

 

Yes

134/403 (33.3)

  1. * Totals by characteristic vary because of missing values. Totals are given next to the number for "No/Yes" dichotomous variables.
  2. ** Active syphilis implies that the antibody titer with the VDRL test was ≥ 1/8 and the TPHA was positive, while positive serology for syphilis implies that the VDRL test was not reactive or < 1/8 and TPHA was positive.
  3. *** Positive serology for hepatitis B was assessed by the detection of antibodies to the hepatitis B core antigen (anti-HBC) indicating previous infection.
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BMC Infectious Diseases

ISSN: 1471-2334

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