What counts as timely publication?
There are different ways to define what a timely publication is. First, study results can either be
posted as summary results on the registry or published in a peer-reviewed journal. Second,
there are different dates on which a study could be considered completed: either the primary
completion date (when all data for the primary endpoints were collected) or the completion
date (last patient last visit). Third, there are different recommendations on how long
it should take to make study results available. Note: when different periods are choosen in the
"Published within how many month"-box, only those trials are considered that we were able to track for
this period (e.g. 60 month since the completion date).
Only exception is the category "Any duration (any follow-up period)", where all trials are considered.
Different subgroups
There are many choices on which group of clinical trials to consider. All of these choices
alter the results for the final publication rates. Only the trials in our dataset that match the set filter criteria
are considered for the calculation of the timely reporting percentage.