From: Prevalence of syphilis in female sex workers in three countryside cities of the state of Pará, Brazilian Amazon
Cities
Overall sample
Syphilis
Negative
Positive
n
%
95% CI
Augusto Corrêa
32
17.4
25
78.1
7
21.9
17.6–26.7
Barcarena
94
51.1
83
88.3
11
11.7
7.7–15.8
Bragança
58
31.5
50
86.2
8
13.8
10.1–19.0
Total
184
100
158
85.9
26
14.1
9.8–17.8