Morrison 1994.

Methods	Identification of subsequent full‐length publications Contacted abstract authors directly
Data	Included 72 abstracts by residents of the Department of Obstetrics and Gynecology and presented at various national meetings from 1983 to 1992 Included all abstracts
Comparisons	Proportion of abstracts published Clinical research versus basic science research Subspecialty
Outcomes	52 of 72 of all abstracts published, but 36 of 61 abstracts with 24 or more months of follow‐up published Proportion of abstracts published by time not reported Factors related to proportion of abstracts published included 32/48 abstracts describing clinical research versus 20/24 abstracts describing basic science research published
Notes	Gynecology/obstetrics Funding not reported Authors present work of 11 additional abstracts followed for < 2 years and not included here
Risk of bias
Item	Authors' judgement	Description
Sampling method?	Yes	Included all abstracts.
Search for publications?	Unclear	Contacted abstract authors, but response rate not reported.
Follow‐up time?	Yes	All meetings before 1991 had at least 48 months follow‐up. All meetings after and including 1991 had less than 48 months follow‐up.
Matching?	Yes	Matched through contact with abstract author.
Adjustment for confounding?	No	Examined association of type science and subspecialty with publication using stratified analysis.