Source attribution of human campylobacteriosis using a meta-analysis of case-control studies of sporadic infections

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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@article{75e161e5717b4fe79f907c07f5d9a7b2,
title = "Source attribution of human campylobacteriosis using a meta-analysis of case-control studies of sporadic infections",
keywords = "Campylobacter, Meta-analysis, Source attribution, Systematic review",
publisher = "Cambridge University Press",
author = "{Coutinho Calado Domingues}, {Ana Rita} and Pires, {Sara Monteiro} and {Hisham Beshara Halasa}, Tariq and Tine Hald",
year = "2012",
doi = "10.1017/S0950268811002676",
volume = "140",
number = "6",
pages = "970--981",
journal = "Epidemiology and Infection",
issn = "0950-2688",

}

RIS

TY - JOUR

T1 - Source attribution of human campylobacteriosis using a meta-analysis of case-control studies of sporadic infections

A1 - Coutinho Calado Domingues,Ana Rita

A1 - Pires,Sara Monteiro

A1 - Hisham Beshara Halasa,Tariq

A1 - Hald,Tine

AU - Coutinho Calado Domingues,Ana Rita

AU - Pires,Sara Monteiro

AU - Hisham Beshara Halasa,Tariq

AU - Hald,Tine

PB - Cambridge University Press

PY - 2012

Y1 - 2012

N2 - Campylobacter spp. is a widespread and important cause of human illness worldwide. Disease is frequently associated with foodborne transmission, but other routes of exposure, such as direct contact with live animals and person-to-person transmission, are also recognized. Identifying the most important sources of human disease is essential for prioritizing food safety interventions and setting public health goals. Numerous case-control studies of sporadic infections of campylobacteriosis have been published. These studies investigated a variety of potential risk factors for disease, often using different methodologies and settings. Systematic reviews (SRs) consist of a formal process for literature review focused on a specific research question, and include the identification of relevant literature, quality assessment of relevant studies, summarization or statistical analysis of data, and conclusions. With the objective of identifying the most important risk factors for human sporadic campylobacteriosis, we performed a SR of case-control studies of human sporadic cases and a meta-analysis of the obtained results. A combined SR focusing on Salmonella and Campylobacter studies was performed and the results analysed separately. From 1295 identified references, 131 passed the relevance screening, 73 passed the quality assessment stage, and data was extracted from 72 studies. Of these, 38 focused on campylobacteriosis. Information on exposures of cases and controls, and estimated odds ratios for investigated risk factors were collected and analysed. In the meta-analysis, heterogeneity between the studies and possible sources of bias were investigated, and pooled odds ratios for identified risk factors were estimated. Results suggest that travelling abroad, eating undercooked chicken, environmental sources, and direct contact with farm animals were significant risk factors for campylobacteriosis. Sub-analyses by geographical region, age group, and study period were performed, and differences were discussed.

AB - Campylobacter spp. is a widespread and important cause of human illness worldwide. Disease is frequently associated with foodborne transmission, but other routes of exposure, such as direct contact with live animals and person-to-person transmission, are also recognized. Identifying the most important sources of human disease is essential for prioritizing food safety interventions and setting public health goals. Numerous case-control studies of sporadic infections of campylobacteriosis have been published. These studies investigated a variety of potential risk factors for disease, often using different methodologies and settings. Systematic reviews (SRs) consist of a formal process for literature review focused on a specific research question, and include the identification of relevant literature, quality assessment of relevant studies, summarization or statistical analysis of data, and conclusions. With the objective of identifying the most important risk factors for human sporadic campylobacteriosis, we performed a SR of case-control studies of human sporadic cases and a meta-analysis of the obtained results. A combined SR focusing on Salmonella and Campylobacter studies was performed and the results analysed separately. From 1295 identified references, 131 passed the relevance screening, 73 passed the quality assessment stage, and data was extracted from 72 studies. Of these, 38 focused on campylobacteriosis. Information on exposures of cases and controls, and estimated odds ratios for investigated risk factors were collected and analysed. In the meta-analysis, heterogeneity between the studies and possible sources of bias were investigated, and pooled odds ratios for identified risk factors were estimated. Results suggest that travelling abroad, eating undercooked chicken, environmental sources, and direct contact with farm animals were significant risk factors for campylobacteriosis. Sub-analyses by geographical region, age group, and study period were performed, and differences were discussed.

KW - Campylobacter

KW - Meta-analysis

KW - Source attribution

KW - Systematic review

U2 - 10.1017/S0950268811002676

DO - 10.1017/S0950268811002676

JO - Epidemiology and Infection

JF - Epidemiology and Infection

SN - 0950-2688

IS - 6

VL - 140

SP - 970

EP - 981

ER -