OpenSAFELY re-open in TPP

As you know, OpenSAFELY is now required to respect type 1 opt-outs. This is easily solvable for most people, but people who have deregistered from a TPP practice may have subsequently requested a type 1 opt-out, and this would not be recorded in their TPP data,

In order to restart the OpenSAFELY service without further delay, we have put in place an interim measure to ensure that these type 1 opt-outs are respected. This measure will mean that for the moment, anyone who deregistered from a TPP practice while alive will be unavailable to OpenSAFELY users.

We are acutely aware that this interim measure will cause a range of serious epidemiological issues. This includes making the data less representative of the true population, and artificially inflating the mortality rate the further back a study starts. These issues are explained in detail in this document:
Interim measure to ensure we exclude type 1 opt-outs.

We are actively working on a long-term solution to this issue, which would resolve the epidemiological issues, and will update you on this as soon as possible.