Snedeker 2010.

Methods	Identification of subsequent full‐length publications Searched electronic database Agricola, CAB abstracts, Web of Knowledge, Scholar's portal from January 1993 to December 2008 Person completing the search not reported Searched by all authors and keywords Matched abstract to full‐length publication by One author Contents Methodology Pathogen being studied Species Meat type Contacted abstract authors directly
Data	Included 149 abstracts presented at the following meetings: 1997, 2000, or 2003 International Symposium on Veterinary Economics and Epidemiology 1995 to 2004 Conference of Research Workers in Animal Disease 2003 International Symposium on Shiga Toxin 1997 to 2004 Society for Veterinary Epidemiology and Preventive Medicine 1996, 1997, 1999 and 2003 International Symposium and Control of Foodborne Pathogens in Pork 1998 International Symposium on Food‐borne Salmonella in Poultry 2003 American Society of Microbiologists Conference on Salmonella 1995 to 2004 North East Conference on Avian Diseases meetings 1995 to 2004 International Association of Food Protection meetings 1998 to 2004 Institute of Food Technologists Annual meetings Included all abstracts that were in vivo clinical trials or field experiments involving a pre‐harvest or abattoir‐level intervention against pathogenic bacteria
Comparisons	Proportion of abstracts published Median time to publication Cumulative proportion of abstracts published Oral versus poster 'Positive' versus 'not positive' Animal species Animal housing Pathogen type
Outcomes	70 of 149 abstracts published Proportion of abstracts published by time Median time to publication = 13.5 months (range = 0 to 72 months) Cumulative proportion of abstracts published at 48 months showed proportion published = 45.6% (68/149 abstracts) Factors related to proportion of abstracts published included OR for publication of abstracts presented orally versus poster = 2.2 (95% CI, 1.0 to 4.8) OR for publication of 'not positive' versus 'positive' (defined as statistically significant) results = 0.4 (95% CI, 0.1 to 1.1)
Notes	Other non‐clinical specialties ‐ food safety research Funding by Canadian Institutes of Health Research, Institute of Population and Public Health/Public Health Agency of Canada Applied Public Health Chair
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts that described specific subgroup, so low risk of bias.
Search for publications?	Yes	Searched 4 databases and contacted abstract authors.
Follow‐up time?	Yes	All meetings had at least 48 months follow‐up.
Matching?	Yes	Matched by 6 different criteria.
Adjustment for confounding?	Yes	Examined data on positive results, type of presentation, animal species, animal housing, and pathogen type using stratified analysis and Chi2 tests or logistic regression and time to publication using multivariable Cox proportional hazard analysis.