Cohen 2012a.

Methods	Identification of subsequent full‐length publications Searched electronic database PubMed to Summer 2008 Search completed by investigators Searched by all authors, and keywords Matched abstract to full‐length publication by All authors Sample size Title Methodology Results Hypothesis
Data	Included 2463 abstracts presented at the 2000 to 2004 American Academy of Otolaryngology, Head and Neck Surgery meetings Included all abstracts
Comparisons	Proportion of abstracts published Mean time to publication by type of presentation and gender of first author Oral versus poster presentation Female versus male first author Oral presentation by female versus male first author Poster presentation by female versus male first author
Outcomes	1152 of 2463 abstracts published Proportion of abstracts published by time Mean time to publication = 19.1 months for poster presentations, overall Mean time to publication = 15.5 months for oral presentations, overall Mean to publication = 19.4 months for poster presentations by female first authors Mean to publication = 18.6 months for poster presentations by male first authors Mean to publication = 15.0 months for oral presentations by female first authors Mean to publication = 15.6 months for oral presentations by male first authors Factors related to proportion of abstracts published included 638/1051 abstracts presented orally versus 514/1413 abstracts presented as poster published 93/275 abstracts presented as poster by female first author versus 421/1138 abstracts presented as poster by male first author published 91/154 abstracts presented orally by female first author versus 547/897 abstracts presented orally by male first author published 184/429 abstracts presented by female first author versus 969/2035 abstracts presented by male first author published
Notes	Otolaryngology head and neck surgery 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 6 different criteria.
Adjustment for confounding?	No	Examined association of type presentation, type presentation by author gender, and first author gender with publication using stratified analysis and Chi2 or Fisher's Exact tests