Sugar cane manufacturing is associated with tuberculosis in an indigenous population in Brazil

Sacchi, Flávia Patussi Correia; Croda, Mariana Garcia; Estevan, Anderson Oliveira; Ko, Albert I.; Croda, Júlio

doi:10.1093/trstmh/trs089

Cited by 18 publications

(23 citation statements)

References 18 publications

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“…In contrast to those studies, which used odds ratios, the present study estimated prevalence ratios, which is considered a more accurate measure of association in settings with a prevalence of infection as high as often seen in indigenous populations (29) . On the other hand, in contrast to a case-control study that indicated that socioeconomic variables were associated with active TB in an indigenous population from the Midwest region of Brazil (30) , in our study, socioeconomic variables, such as income, educational level, and number of persons per household, did not show a signifi cant association to latent tuberculosis infection.…”

Section: Discussioncontrasting

confidence: 99%

Prevalence and factors associated with latent tuberculosis infection in an indigenous population in the Brazilian Amazon

Malacarne

Rios

Silva

et al. 2016

Rev. Soc. Bras. Med. Trop.

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Introduction:Recent studies have shown a high incidence and prevalence of latent tuberculosis infection (LTBI) in indigenous populations around the World. We aimed to estimate the prevalence and annual risk of infection (ARI) as well as to identify factors associated with LTBI in an indigenous population from the Brazilian Amazon. Methods: We conducted a cross-sectional study in 2011. We performed tuberculin skin tests (TSTs), smears and cultures of sputum samples, and chest radiographs for individuals who reported cough for two or more weeks. Associations between LTBI (TST ≥5mm) and socio-demographic, clinical, and epidemiological characteristics were investigated using Poisson regression with robust variance. Prevalence ratio (PR) was used as the measure of association. Results: We examined 263 individuals. The prevalence of LTBI was 40.3%, and the ARI was 2.4%. Age ≥15 years [PR=5.5; 95% confi dence interval (CI): 3.5-8.6], contact with tuberculosis (TB) patients (PR=3.8; 95% CI: 1.2-11.9), previous TB history (PR=1.4; 95% CI: 1.2-1.7), and presence of Bacillus Calmette-Guérin (BCG) scar (PR=1.9, 95% CI: 1.2-2.9) were associated with LTBI.Conclusions: Although some adults may have been infected years prior, the high prevalence of infection and its strong association with age ≥15 years, history of TB, and recent contact with TB patients suggest that the TB transmission risk is high in the study area.

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Section: Discussioncontrasting

confidence: 99%

Prevalence and factors associated with latent tuberculosis infection in an indigenous population in the Brazilian Amazon

Malacarne

Rios

Silva

et al. 2016

Rev. Soc. Bras. Med. Trop.

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“…The number was small, but only cases had a chance of close contact with TB patients. TB contact was absolutely a risk factor for TB transmission [18,26]. No significant difference was found in the rate of ''smoking'' by the MA, but the MLR extracted ''smoking'' as a risk.…”

Section: Discussionmentioning

confidence: 92%

Factors associated with tuberculosis cases in Semarang District, Indonesia: case–control study performed in the area where case detection rate was extremely low

Rahayu

Katsuyama

Demura

et al. 2015

Environ Health Prev Med

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Objectives Indonesia is ranked as the 4th highest contributor to tuberculosis (TB) in the world. Semarang District in Central Java displays extremely low case detection rate (CDR), possibly contributing to the local prevalence of TB. Methods A case-control study was performed to explore the factors that cause such low CDR. We recruited 129 TB cases and 83 controls that visited the same centers and were not diagnosed with TB. Results The cases had 7.5 ± 2.3 symptoms/person on average, indicating the delay in diagnosis because the controls only displayed 1.0 ± 1.7. The multiple logistic regression analysis comparing the cases/controls extracted following factors as a risk to have TB: farmer, close contact with TB patients, ignorance of whether Bacillus Calmette-Guérin (BCG) was accepted or no, smoking, low income, a lot of people living in the same room, irregular hand wash before meals, not wash hands after blow, soil floor, and no sunlight and no ventilation in the house. Conclusions Neither the cases nor the controls knew the symptoms and how to avoid TB infection, which probably caused the delay in diagnosis. It is difficult to change the current living conditions. Thus, the amendment of the community-based education program of TB seems to be required.

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“…Esses autores constataram elevada taxa de transmissão recente nessa população e vín-culo epidemiológico estabelecido entre 30% dos casos, confirmando a propagação interpessoal da doença. Inúmeros trabalhos apontam maior vulnerabilidade dos povos indígenas ao adoecimento por tuberculose em comparação com outros segmentos da população 21,22,23,24,25 , o que se agrava frente às condições de pobreza, falta ou limitação de acesso aos serviços de saúde, uso abusivo de álcool, deficiências nutricionais e presença de comorbidades 26,27 .…”

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Magnitude da tuberculose pulmonar na população fronteiriça de Mato Grosso do Sul (Brasil), Paraguai e Bolívia

et al. 2014

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Este estudo analisou a magnitude da tuberculose pulmonar no período de 2007 a 2010 em municípios sul-mato-grossenses fronteiriços ao Paraguai e à Bolívia. Na região de fronteira, as taxas de incidência (49,1/100 mil habitantes), de mortalidade (4,0/100 mil) e de abandono do tratamento (11,3%) foram 1,6, 1,8 e 1,5 vez maiores do que na região não fronteiriça. Entre indígenas da fronteira, as taxas de incidência (253,4/100 mil habitantes), mortalidade (11,6/100 mil) e coinfecção por HIV (1,9/100 mil) foram, respectivamente, 6,4, 3,2 vezes e 1,9 vez maiores do que entre os não indígenas nesta região. Estar na região de fronteira revelou-se fator de proteção contra coinfecção por HIV. Constatou-se associação entre ser indígena e não abandonar o tratamento. Conclui-se que a população residente nesses municípios de fronteira vivencia elevado risco de adoecimento, de morte e de abandono do tratamento de tuberculose pulmonar, o que requer ações diferenciadas de vigilância em saúde.

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Sugar cane manufacturing is associated with tuberculosis in an indigenous population in Brazil

Abstract: There is a potential relationship between exposure to sugar cane manufacturing processes and tuberculosis infection among indigenous populations.

Cited by 18 publications

References 18 publications

Prevalence and factors associated with latent tuberculosis infection in an indigenous population in the Brazilian Amazon

Prevalence and factors associated with latent tuberculosis infection in an indigenous population in the Brazilian Amazon

Factors associated with tuberculosis cases in Semarang District, Indonesia: case–control study performed in the area where case detection rate was extremely low

Magnitude da tuberculose pulmonar na população fronteiriça de Mato Grosso do Sul (Brasil), Paraguai e Bolívia

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