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Publication
Meta-análise do contato com animais e do consumo de carne como fontes de salmonelose esporádica
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Advisor(s)
Abstract(s)
As doenças gastrointestinais representam um importante problema de saúde pública em
todo mundo, desta forma a identificação da origem de transmissão é de grande
importância para a avaliação e atribuição de risco. Os estudos epidemiológicos de casocontrolo
são usados para identificar os fatores de risco associados à transmissão das
doenças. A salmonelose, doença causada por vários serotipos de Salmonella spp., pode
ser transmitida ao homem de diversas formas. De uma forma geral, os casos esporádicos
de salmonelose não partilham o mesmo fator de risco ou rota de contaminação, de modo
que os estudos que medem a relação de probabilidades (“odds ratio”, OR) de qualquer
fonte de transmissão podem ocultar os riscos reais tornando-os mais difíceis de detetar
(Fullerton et al., 2012). Por exemplo, o frango assado é uma importante fonte de
contaminação por Salmonella spp., todavia a maioria das porções de frango não estão
contaminadas, de modo que a probabilidade de uma pessoa adquirir salmonelose pelo
consumo de frango assado é apenas um pouco superior à das pessoas que não consomem
frango assado (controlo).
A case-control study is used to identify causal effects of diseases transmission at population level. The objective of this study was to synthesize the association between sporadic salmonellosis and two broad routes of exposure (meat consumption and animals contact) by combining the odds-ratio outcomes extracted from case-control studies found in bibliographic search platforms. A systematic review was conducted through the search engines of Science Direct, Pubmed, Scielo, ISI Web of Science and Scopus. From 69 case-control studies, odds-ratios (ORs), population, design/model/analysis type and probable risk factors were extracted. Subsequently, the global ORs for the transmission routes considered were estimated by mixed-effects metaanalysis models. The obtained results identified that, in the mixed population, consumption of pork is the main source of salmonellosis (pooled OR=2.662), followed by occupational exposure to animals/meat (pooled OR=2.583) and consumption of nonclassified meats, BBQ and game meat (pooled OR=2.442 – 2.459). On the other hand, children were more likely to acquire salmonellosis through contact with farm animals (pooled OR=5,977) followed by consumption of pork meat (pooled OR=3.193) and contact with pets (pooled OR=3.155).
A case-control study is used to identify causal effects of diseases transmission at population level. The objective of this study was to synthesize the association between sporadic salmonellosis and two broad routes of exposure (meat consumption and animals contact) by combining the odds-ratio outcomes extracted from case-control studies found in bibliographic search platforms. A systematic review was conducted through the search engines of Science Direct, Pubmed, Scielo, ISI Web of Science and Scopus. From 69 case-control studies, odds-ratios (ORs), population, design/model/analysis type and probable risk factors were extracted. Subsequently, the global ORs for the transmission routes considered were estimated by mixed-effects metaanalysis models. The obtained results identified that, in the mixed population, consumption of pork is the main source of salmonellosis (pooled OR=2.662), followed by occupational exposure to animals/meat (pooled OR=2.583) and consumption of nonclassified meats, BBQ and game meat (pooled OR=2.442 – 2.459). On the other hand, children were more likely to acquire salmonellosis through contact with farm animals (pooled OR=5,977) followed by consumption of pork meat (pooled OR=3.193) and contact with pets (pooled OR=3.155).
Description
Keywords
Salmonella spp. Doenças gastrointestinais
Pedagogical Context
Citation
Gonçalves-Tenório, Andiara; Cadavez, Vasco; Rodrigues, Vânia; Kooh, Pauline; Sanaa, Moez; Gonzales-Barron, Ursula A. (2918). Meta-análise do contato com animais e do consumo de carne como fontes de salmonelose esporádica. Revista Portuguesa de Zootecnia. ISSN 0872-7098. 3:1, p. 499-505