Smollin 2006.

Methods	Identification of subsequent full‐length publications Searched electronic database PubMed; date of search not reported Search completed by investigator Searched by first, second, and last author, keywords, and title Matching criteria not reported
Data	Included 237 abstracts presented at the 2001 North America Conference of Clinical Toxicology meeting Included all abstracts
Comparisons	Proportion of abstracts published Mean time to publication Clinical research versus basic science research versus other Case report design versus other design Subspecialty
Outcomes	57 of 237 abstracts published Proportion of abstracts published by time Mean time to publication = 15 months (range = 0 to 29 months) Factors related to proportion of abstracts published included 48/203 abstracts describing clinical research versus 6/19 abstracts describing basic science research versus 3/15 other abstracts published 25/109 abstracts with case report design versus 32/128 abstracts with other design published
Notes	Other non‐clinical specialties ‐ toxicology Reported receiving no funding
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts.
Search for publications?	No	Searched only 1 database.
Follow‐up time?	Unclear	Date of search not reported.
Matching?	Unclear	Matching criteria not reported.
Adjustment for confounding?	No	Examined association of type science and study design with publication using stratified analysis and Chi2 tests.