Varghese 2011.

Methods	Identification of subsequent full‐length publications Searched electronic database MEDLINE, PubMed to August 2009 Search completed by investigator Searched by first author and keywords Matched abstract to full‐length publication by All authors Title Contents
Data	Included 1191 abstracts submitted to the 2003 to 2005 Pediatric Orthopaedic Society of North America meetings Included all abstracts
Comparisons	Proportion of abstracts published, overall and by meeting Mean and median time to publication by meeting, oral presentation and rejection Oral versus poster presentation Accepted versus rejected for conference presentation
Outcomes	598 of 1191 abstracts published 221/431 abstracts presented at the 2003 meeting, 169/343 at the 2004 meeting, and 208/417 at the 2005 meeting published Proportion of abstracts published by time Mean time to publication = 24 months (95% CI = 20.3 to 27.8 months) for 2003 Pediatric Orthopaedic Society of North America meeting 21.9 months (95% CI = 17.6 to 26.2 months) for oral presentation 21.4 months (95% CI = 18.5 to 24.2 months) for rejected abstracts Mean time to publication = 24.8 months (95% CI = 21.4 to 28.3 months) for 2004 Pediatric Orthopaedic Society of North America meeting 28.3 months (95% CI = 23.2 to 33.5 months) for oral presentation 22.2 months (95% CI = 19.0 to 25.4 months) for rejected abstracts Mean time to publication = 20.2 months (95% CI = 17.7 to 22.8 months) for 2005 Pediatric Orthopaedic Society of North America meeting 20.7 months (95% CI = 17.2 to 24 months) for oral presentation 17.6 months (95% CI = 15 to 20.1 months) for rejected abstracts Median time to publication = 18.0 months or 2003 Pediatric Orthopaedic Society of North America meeting 18 months for oral presentations 18 months for rejected abstracts Median time to publication = 22 months or 2004 Pediatric Orthopaedic Society of North America meeting 26 months for oral presentations 19.5 months for rejected abstracts Median time to publication = 17 months or 2005 Pediatric Orthopaedic Society of North America meeting 18.5 months for oral presentations 15 months for rejected abstracts Factors related to proportion of abstracts published included 159/265 abstracts presented orally versus 100/175 abstracts presented as poster published 259/440 abstracts accepted for presentation versus 339/751 rejected abstracts published
Notes	Orthopedics/orthopedic surgery ‐ pediatrics Funding not reported
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts.
Search for publications?	No	Searched only 1 database.
Follow‐up time?	Yes	All meetings had at least 48 months follow‐up.
Matching?	Yes	Matched by 3 different criteria.
Adjustment for confounding?	Yes	Examined association of meeting year, type presentation, and acceptance for presentation with publication using stratified analysis.