Background: The aim of this study is to investigate syphilis and HIV coinfection prevalence rate according to previous manifestations of Sexually Transmitted Infections (STIs). Methods: We conducted a descriptive study from secondary data from a national survey using a probabilistic sample of conscripts in the Brazilian Army. Participants referred previous signs/ symptoms of STIs. Both HIV and syphilis diagnosis were made based on the national laboratory diagnostics guidelines. Prevalence data were weighted to achieve national representativeness. Results are presented on relatives frequencies, with a 95% confidence interval (95CI %). Results: Among 37,282 conscripts aged 17-22 years old, the national syphilis and HIV coinfection prevalence rate was 1.2% (IC 95% 0.9-1.4). Of the total sample, 1,259 (3.4%) reported previous history of wart on penis, mouth or anus; 4,510 (12.10%) referred previous presence of any wound on penis, mouth or anus; 488 patients (1.3%) referred history of urethral discharge; 756 (2.0%) reported vesicle on penis; 2,685 (7.2%) have had pain or burning sensation on urination. Amongst those signs / symptoms groups, syphilis and HIV coinfection prevalence rate was 4.9% (95IC% 2.1-11.0), 3.4% (95IC% 0.8-2.1), 1.8% (95IC% 1.1-3.2), 4.4% (95IC % 2.0-9.5) and 1.7% (95IC% 0.7-3.9), respectively. Although 28,033 (75.2%) individuals had not reported any signs or symptoms of STIs to the date of the survey, syphilis and HIV coinfection prevalence rate was of 0.7% (IC95% 0.5-0.9). Conclusions:Considering the syphilis and HIV coinfection prevalence rate in the conscript population with self-reported previous history of manifestations of STIs, we recommend intensifying preventive actions for young people and periodically investigating signs and symptoms of STIs in health services. Therefore, the facilitated access to laboratory diagnosis of syphilis and HIV associated with immediate treatment are essential for reducing morbidity and interrupting the chain of transmission of the disease.

SYPHILIS AND HIV COINFECTION AND PREVIOUS HISTORY OF SIGNS AND SYNTOMS OF STI AMONG CONSCRIPTS IN BRAZIL, 2016