Castillo 2002.

Methods	Identification of subsequent full‐length publications Searched electronic database PubMed, DataStar from 1993 to December 2000 Search completed by investigator Searched by lead, second, third, and last author, keywords, and title Matching criteria not reported
Data	Included 472 abstracts presented at the 1995 European Society of Anesthesiologists meeting Included all abstracts
Comparisons	Proportion of abstracts published Mean time to publication Cumulative proportion of abstracts published 'Positive' versus not 'positive' Sample size equal to or above the median versus sample size below the median Oral versus poster presentation RCT design versus non‐RCT design North American versus European versus rest of the world origin Subspecialty
Outcomes	199 of 472 abstracts published Proportion of abstracts published by time Mean time to publication = 16.8 months (SD = 15.6; range = 24 to 60 months) Cumulative proportion of abstracts published at 72 months showed proportion published = 42.2% (199/472 abstracts) Factors related to proportion of abstracts published included 160/361 'positive' (defined as significant results) versus 23/56 not 'positive' abstract results published 73/197 abstracts with sample size equal to or above the median versus 106/230 abstracts with sample size below the median published 83/210 abstracts presented orally versus 116/262 abstracts presented as poster published 69/146 abstracts with RCT design versus 128/326 abstracts with non‐RCT design published 8/14 abstracts originating in North America versus 184/408 abstracts from Europe versus 7/49 abstracts from rest of the world published
Notes	Anesthesiology Funding not reported
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts.
Search for publications?	Yes	Searched 2 databases.
Follow‐up time?	Yes	The meeting had 5 years follow‐up.
Matching?	Unclear	Matching criteria not reported.
Adjustment for confounding?	No	Examined association of positive results, sample size, type presentation, study design, country or origin and subspecialty with publication by stratified analysis and Wilcoxon signed rank sum or U‐tests.