evidence: NISRA provisional death statistics are based on death registration information collected by the General Register Office. Information on the quality of the data used to produce death statistics is available in the Northern Ireland Deaths Background Quality Report. [...] To supplement this, NISRA has published a short explainer paper, providing an overview of the changes in the methodology for calculating the estimate of expected deaths used to determine excess deaths, and the impact that will have in Northern Ireland, and an extraction from the UK dataset of the Northern Ireland specific data for the convenience of users.