Fig. 2
From: Dissemination of Registered COVID-19 Clinical Trials (DIRECCT): a cross-sectional study
A–D Time to trial results reporting across dissemination routes. Summary results in the registry limited to the three registries with structured summary results reporting formats (EU Clinical Trial Register, ClinicalTrials.gov, ISRCTN). The Aalen-Johanssen plot of time to preprint publication (C) used nominal offsets to break ties at 0. Trials with a publication date prior to the available completion date (across all results, n = 71 of 402 trials, 18%) were considered reported at time 0