Document Detail

Reporting of methodological features in observational studies of pre-harvest food safety.
MedLine Citation:
PMID:  21095033     Owner:  NLM     Status:  MEDLINE    
Observational studies in pre-harvest food safety may be useful for identifying risk factors and for evaluating potential mitigation strategies to reduce foodborne pathogens. However, there are no structured reporting guidelines for these types of study designs in livestock species. Our objective was to evaluate the reporting of observational studies in the pre-harvest food safety literature using guidelines modified from the human healthcare literature. We identified 100 pre-harvest food safety studies published between 1999 and 2009. Each study was evaluated independently by two reviewers using a structured checklist. Of the 38 studies that explicitly stated the observational study design, 27 were described as cross-sectional studies, eight as case-control studies, and three as cohort studies. Study features reported in over 75% of the selected studies included: description of the geographic location of the studies, definitions and sources of data for outcomes, organizational level and source of data for independent variables, description of statistical methods and results, number of herds enrolled in the study and included in the analysis, and sources of study funding. However, other features were not consistently reported, including details related to eligibility criteria for groups (such as barn, room, or pen) and individuals, numbers of groups and individuals included in various stages of the study, identification of primary outcomes, the distinction between putative risk factors and confounding variables, the identification of a primary exposure variable, the referent level for evaluation of categorical variable associations, methods of controlling confounding variables and missing variables, model fit, details of subset analysis, demographic information at the sampling unit level, and generalizability of the study results. Improvement in reporting of observational studies of pre-harvest food safety will aid research readers and reviewers in interpreting and evaluating the results of such studies.
Jan M Sargeant; Annette M O'Connor; David G Renter; David F Kelton; Kate Snedeker; Lee V Wisener; Erin K Leonard; Alessia D Guthrie; Meredith Faires
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.     Date:  2010-11-20
Journal Detail:
Title:  Preventive veterinary medicine     Volume:  98     ISSN:  1873-1716     ISO Abbreviation:  Prev. Vet. Med.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2010-12-27     Completed Date:  2011-01-31     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8217463     Medline TA:  Prev Vet Med     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  88-98     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier B.V. All rights reserved.
Centre for Public Health and Zoonoses, University of Guelph, Guelph, Ontario, Canada.
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MeSH Terms
Consumer Product Safety*
Food Contamination / prevention & control*
Food Microbiology
Food Safety*
Foodborne Diseases / prevention & control*
Risk Factors
Grant Support
//Canadian Institutes of Health Research

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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