The UK Performance Indicators (which included non-continuation rates) have been discontinued after the 2020/21 release.
These data provide information about the participation of certain groups that are under-represented in higher education.
The data includes the percentage of students from state schools or colleges, specified socio-economic classes and low-participation neighbourhoods and provide a breakdown by Higher Education institution.
Included in the table are Young full-time undergraduate entrants and Mature full-time undergraduate entrants.
Much more data is available from the HESA website.