The Compendium mortality set covers a large number of indicators across the publications listed below.
All legacy P codes are included in the key search terms and so can be used to find the associated indicator, unless the indicator is now a signpost to more relevant information held elsewhere. Signposted indicators will be listed under their relevant series with their legacy P code included.
Please see the individual publications for information on each set.
As of March 2019, users should also be aware of the following:
ONS mortality data relating to the 2017 calendar year is the primary underlying data source of the indicator set . Prior to this, the set was based on 2015 ONS mortality data. A decision was taken to move directly from 2015 to 2017 in order to align NHS Digital reporting periods with the latest available ONS data on an ongoing basis.
From 2016 onwards, mortality counts within the Compendium Mortality Indicator set are based on a bespoke extract taken from the Primary Care Mortality Database (PCMD) maintained by NHS Digital. PCMD is updated monthly using a file of death records from ONS and is continually subject to amendment.
It is already well established that late registrations have a small impact on counts. This bespoke extract may be taken at a different time to that of the mortality data published by ONS and as such this may cause some small differences between ONS and NHS Digital mortality figures for a given year.
Unfortunately, it was not possible to apply the 2017 refresh to indicators within the 'Infant mortality' publication in time for the March 2019 release, although it was applied to indicators within each of the other 36 publications. NHS Digital intends to release Infant mortality indicators reflecting the 2017 refresh by summer 2019.
Furthermore, there are eight indicators within the 'Mortality from skin cancers other than malignant melanoma' publication and a further two within 'Years of life lost' which have been permanently excluded from the 2017 refresh. This was due to a substantial number of deaths from squamous cell carcinoma where no site was specified having been miscoded to ICD10 code C449. This resulted in a substantial artificial step change in the series for both 2016 and 2017 which had the potential to mislead if published.
ONS are aware of the issue and have indicated that it will be resolved for the 2018 release. For each of the affected indicators, the versions based on the 2015 refresh remain available to download in the interim. The 2018 refresh is due to be released in March 2020.