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. 2024 Jan 2;24(1):23.
doi: 10.1186/s12879-023-08955-w.

Social and individual vulnerability factors associated with syphilis among populations living on islands in the Brazilian Amazon

Ellen Christiane Correa Pinho  1 , José Jorge da Silva Galvão  1 , Aline Maria Pereira Cruz Ramos  1 , Cintia Yolette Urbano Pauxis Aben-Athar  1 , Richardson Augusto Rosendo da Silva  2 , Carlos Leonardo Figueiredo Cunha  1 , Eliã Pinheiro Botelho  1 , Glenda Roberta Oliveira Naiff Ferreira  3
Affiliations

Social and individual vulnerability factors associated with syphilis among populations living on islands in the Brazilian Amazon

Ellen Christiane Correa Pinho et al. BMC Infect Dis. .

Abstract

Background: The repercussions of the syphilis epidemic differ according to populations. Identifying and acknowledging the differences and specificities of populations is fundamental in the design and implementation of policies aimed at assisting the groups most vulnerable to syphilis.

Objective: To estimate the prevalence of antibodies against Treponema pallidum and associated vulnerability factors among riverside populations of a capital city in the Brazilian Amazon.

Methods: Cross-sectional study was conducted among residents of the periurban islands in Belém, northern Brazil, from August 2020 to January 2021. The inclusion criterion was being a resident of the riverside communities of the Combú Environmental Protection Area, aged 18 years or over. The participants responded to questionnaire and were tested for syphilis using rapid test. Data were analyzed using multiple logistic regression by Minitab version 20® software.

Results: Overall, a total of 325 riverine were included. Age varied from 18 to 91 years (average 40 years). Prevalence of markers for syphilis was 5.9% (95% CI: 3.3%-8.4%). The multiple regression showed that as age increases, the chances of having syphilis also increase (p = 0.001; aOR: 1.04) and riverside dwellers with more than one sexual partner in the last 6 months had more than four chances of having syphilis compared to people who had only one sexual partner (p = 0.007; aOR: 4.20).

Conclusion: Syphilis circulates among traditional populations in the Amazon and is associated with factors of social and individual vulnerability.

Keywords: Prevalence; Primary health care; Sexually transmitted infections; Syphilis.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Combú Environmental Protection Area. Source: macroproject database
Fig. 2
Fig. 2
Geographic location of the island investigates in Belém, state of Pará, Brazilian Amazon. Legend: Micro areas: 1,2,3,4,5,6. symbol: location Combú's basic health unit. Source: Prepared by the authors, in the laboratory of the macroproject research group
See this image and copyright information in PMC

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