TABLE 2.
Prevalence of Recent Syphilis Infection Among Socially Marginalized Men, Men Who Have Sex With Only Men, and Women in Low-Income Barrios of Urban, Coastal Peru, 2003–2005
| Socially Marginalized Men (n = 2,136) |
MSOM (n = 513) |
Women (n = 295) |
||||
|---|---|---|---|---|---|---|
| n/N | Recent Syphilis Prevalence* (%) |
n/N | Recent Syphilis Prevalence (%) |
n/N | Recent Syphilis Prevalence (%) |
|
| All | 32/2136 | 1.5 | 54/513 | 10.5 | 6/295 | 2.0 |
| Demographics | ||||||
| Age (yr) | ||||||
| 18–21 | 7/957 | 0.7 | 7/104 | 6.7 | 0/86 | 0.0 |
| 22–25 | 10/606 | 1.7 | 10/130 | 7.7 | 2/70 | 2.9 |
| 26–29 | 7/281 | 2.5 | 15/106 | 14.2 | 0/48 | 0.0 |
| 30–33 | 5/153 | 3.3 | 8/82 | 9.8 | 1/35 | 2.9 |
| 34+ | 3/139 | 2.2+ | 14/91 | 15.4† | 3/56 | 5.4 |
| Marital status | ||||||
| Single | 17/1419 | 1.2 | 52/484 | 10.7 | 2/94 | 2.1 |
| Married | 11/607 | 1.8 | 2/26 | 7.7 | 3/161 | 1.9 |
| Divorced or widowed | 4/109 | 3.7 | 0/3 | 0.0 | 1/40 | 2.5 |
| High school education | ||||||
| No | 18/1091 | 1.6 | 24/174 | 13.8 | 6/180 | 3.3 |
| Yes | 14/1045 | 1.3 | 30/339 | 8.8 | 0/115 | 0.0 |
| Sexual risk variables | ||||||
| Drug use* | ||||||
| No | 25/1488 | 1.7 | 48/464 | 10.3 | 6/279 | 2.2 |
| Yes | 7/646 | 1.1 | 6/49 | 12.2 | 0/16 | 0.0 |
| No. partners in last 3 mo | ||||||
| 0–1 | 16/1306 | 1.2 | 14/160 | 8.8 | 3/234 | 1.3 |
| 2–3 | 12/636 | 1.9 | 16/175 | 9.1 | 3/39 | 7.7 |
| 4+ | 4/194 | 2.1 | 23/176 | 13.1 | 0/22 | 0.0 |
| Sexually active years | ||||||
| <5 | 6/773 | 0.8 | 2/67 | 3.0 | 0/86 | 0.0 |
| 6–10 | 12/769 | 1.6 | 11/132 | 8.3 | 2/87 | 2.3 |
| 11–15 | 9/371 | 2.4 | 14/123 | 11.4 | 0/56 | 0.0 |
| 16+ | 5/218 | 2.3† | 27/191 | 14.1† | 4/66 | 6.1 |
| Compensated sex‡ | ||||||
| No | 26/1772 | 1.5 | 36/350 | 10.3 | 4/261 | 1.5 |
| Yes | 6/340 | 1.8 | 16/155 | 10.3 | 2/34 | 5.9 |
| HIV-1 antibody status | ||||||
| Negative | 28/2121 | 1.3 | 49/452 | 10.8 | 6/294 | 2.0 |
| Positive | 4/15 | 26.7§ | 5/61 | 8.2 | 0/1 | 0.0 |
| HSV-2 antibody status | ||||||
| Negative | 13/1644 | 0.8 | 6/123 | 4.9 | 1/153 | 0.7 |
| Positive | 19/492 | 3.9§ | 48/390 | 12.3† | 5/142 | 3.5 |
Recent syphilis infection defined as RPR titer ≥1:8.
P < 0.05.
Drug use defined as use of marijuana or cocaine in the last month; compensated sex defined s exchanging sex for money or goods in the last 3 months.
P < 0.001; among MSOM and socially-marginalized men, non-parametric test for trend performed on age, number of partners in the last 3 month, and sexually active years; chi square test, or Fisher exact test performed on all other variables.
n indicates the number of recent syphilis cases per stratum and N indicates the number of subjects per stratum (stratum sample size).
MSOM indicates men who have sex with only men.