Table 3.

CRF and database statistics per year

¹Excluding ‘stratified STAMPEDE’ pilot 2018 (different database and CRFs not discussed here)

²Any new or updated version. FOCUS4 includes all database designs

³A new database design was introduced in 2017 for FOCUS4 Comparison C, but the data are currently saved to the same responses table

⁴Tickets include requests for updates to database, reports, website, randomisation server. The unit did not mandate using ticket system pre-2012, so these data are not representative of all changes