Uzun 2013.

Methods	Identification of subsequent full‐length publications Searched electronic database MEDLINE and PubMed from June 2005 to July 2010 Search completed by the investigators Searched by all authors, keywords, and title Matching criteria not reported. Searched journals South Pacific Underwater Medicine Society and European Underwater and Baromedical Society until 2007
Data	Included 179 abstracts presented at the 2005 Undersea and Hyperbaric Medical Society meeting Included all abstracts except 2 retracted abstracts and 6 that were published prior to meeting
Comparisons	Proportion of abstracts published Mean and median time to publication Cumulative proportion of abstracts published Clinical research versus basic science research versus secondary research Observational design versus case report design versus experimental clinical design Multi‐centered versus single center English language versus non‐English language North American versus European versus Asian versus Australian versus South American origin USA versus non‐USA origin Statistical methods mentioned versus not mentioned 1‐5 authors versus > 5 authors Subspecialty
Outcomes	62 of 179 abstracts published Proportion of abstracts published by time Mean time to publication = 18.5 months (SD = 13.6; range = 2 to 60 months) Median time to publication = 15 months Cumulative proportion of abstracts published at 60 months showed proportion published = 34.6% (62/179 months) Factors related to proportion of abstracts published included 32/112 abstracts describing clinical research versus 28/56 abstracts describing basic science research versus 2/11 abstracts describing secondary research published 20/58 abstracts with observational design versus 4/31 abstracts with case report design versus 8/23 abstracts with experimental clinical design published 20/57 abstracts with multiple centers versus 42/122 abstracts with a single center published 47/134 abstracts in English language versus 15/45 abstracts in non‐English language published 37/115 abstracts originating in North America versus 18/32 abstracts originating from Europe versus 3/19 abstracts originating from Asia versus 3/5 abstracts originating from Australia versus 1/8 abstracts originating from South America published 34/107 abstracts originating from the USA versus 28/72 abstracts with non‐US origin published 16/26 abstracts with statistical methods mentioned versus 35/103 abstracts without statistical methods mentioned published 40/138 abstracts with 1 to 5 authors versus 22/41 abstracts with > 5 authors published
Notes	Other clinical specialties ‐ undersea and hyperbaric medicine Funding not reported
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts with reasonable exceptions.
Search for publications?	Yes	Searched 1 database and 2 journals.
Follow‐up time?	Yes	The meeting had 5 years follow‐up.
Matching?	Unclear	Matching criteria not reported.
Adjustment for confounding?	Yes	Examined association of type of science, study design, multi‐center status, origin in English language country, country of origin, US origin, presence of statistical methods, number of authors and subspecialty with publication using multivariable logistic regression analyses.