Table 2

Characteristics of selected studies and AIDS prevalence among men who have sex with men from Brazil, 1998-2009.

Characteristics of Study Population

Sexual behavior and HIV infection


Source

N

State

Design (Period)

Age

Ethnicity (%)

Condom use (%)

HIV prevalence

Variables associated with prevalent HIV


Tun et al. [49]

658

Campinas

Cross-sectional (2006)

Median: 23

NA

    Unprotected sex

Overall sample: 7% (5-11%)

NA

MSM engaged in sex work:

Insertive anal sex: 21.0%

MSM engaged in sex work: 14%

Receptive anal sex: 22.0%

Vaginal sex: 23.0%

MSM not engaged in sex work:

MSM not engaged in sex work: 6%

Insertive anal sex: 5.0%

Receptive anal sex: 5.0%

Participants between 14-19 years: 4%

Vaginal sex: 6.0%

Unprotected receptive anal sex with at least one partner: 30% (CI: 26-35%)

Unprotected receptive anal sex with ≥ 2 partners: 7% (4-10%)

Unprotected anal/vaginal sex with female, previous 2 months: 75% (37-91%)


Ferreira et al. [50]

1872

Brazil

Cross-sectional (2000-01)

28 ± 8.2

Non white: 51.1%

Always use condom: 36.4%

51.9%

NA


Szwarcwald et al.[51]

8983

Brazil

Cross-sectional (2002)

17-20 years: 94.0%

NA

Always use condom: 34.1%

0.564 (0.278-0.850)

NA


Schechter et al. [52]

200

Rio de Janeiro

Prospective cohort (1998-2001)

28

White: 47.0%

Unprotected anal sex, previous 6 months:

NA5

NA

Black: 21.0%

PEP5 : 47.1%

Mulatto: 7.0%

Non-PEP: 36.4%

Others: 26.0%


Barcellos et al. [53]

4616

Porto Alegre

Cross-sectional (1996)

NA

NA

NA

24.1%

NA


Carneiro et al. [54]

621

Belo Horizonte

Cross-sectional (1994-1999)

Mean: 28

NA

NA

9.8%

Unprotected sex w/occasional partner: AOR7 : = 3.7 (: 1.1 -11.9)

Receptive anal sex w/occasional partner: AOR = 2.8 (0.9- 8.9)

Black vs. Non-black:

AOR = 3.4 (1.3-10.6)


Sutmöller et al.[55]

1165

Rio de Janeiro

Prospective cohort8 (1994-1998)

Range: 18-50

NA

NA

24.1%

NA


Carneiro et al. [56]

470

Belo Horizonte

Cross-sectional (1994-1999)

26.9 ± 6.8

Mulatto: 51.8%

White: 40.9%

Black: 7.3%

Unprotected anal sex with occasional partner: 41.3%9

NA

NA


Brazilian Ministry of Health [57]

642

São Paulo

Cross-sectional (1994-1999)

28

NA

    Stable partner

8.8%

NA

Receptive anal sex: 33.9%

Insertive anal sex: 36.0%

    Occasional partner

Receptive anal sex: 13.7%

Insertive anal sex: 15.3%


Harrison et al. [58]

849

Rio de Janeiro

Prospective cohort10 (1995-97)

HIV+: 28.8

HIV+: 63.6%

    Unprotected receptive anal sex:

11.7%

Penile or anal lesion (p < 0.01)

HIV-: 28.2

HIV-: 50.7

HIV+: 59.6%

Hepatitis B seropositivity (p < 0.01)

HIV-: 43.6%

    Unprotected insertive anal sex:

History of syphilis (p < 0.01)

HIV+: 34.3%

HIV-: 30.8%


2 All MSM and injection drug users (IDU)

3 MSM sample size among 30,970 military conscripts

4 PEP: Post-sexual Exposure Prophylaxis

5 Only incidence rates are available

6 Homo and bisexuals included

7 AOR: Adjusted Odds Ratio

8 Baseline data

9 Among 265 participants reporting anal sex

10 Baseline data

Malta et al. BMC Public Health 2010 10:317   doi:10.1186/1471-2458-10-317

Open Data