Chan 2008.

Methods	Identification of subsequent full‐length publications Searched electronic database "electronic literature search" to December 2007 Search completed by trained librarian Search criteria not reported Matching criteria not reported Contacted abstract authors directly
Data	Included 257 abstracts presented at the 2003 and 2004 International HTA conference meetings Included all abstracts presenting assessments of specific technologies
Comparisons	Proportion of abstracts published
Outcomes	122 of 257 abstracts published Proportion of abstracts published by time not reported No factors related to proportion of abstracts published reported
Notes	Medical decision making/health policy‐ health technology Funding not reported Data extracted from abstract
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Unclear	Included all abstracts that described 'assessments of specific technologies', but unclear how this subgroup was defined.
Search for publications?	Yes	Searched electronically and contacted abstract authors.
Follow‐up time?	Yes	The 2003 meeting had 48 months follow‐up, the 2004 only had 36 months follow‐up.
Matching?	Unclear	Matching criteria not reported.