Received: 7 January 2019
Accepted: 8 August 2019
First Online: 14 August 2019
Change Date: 17 October 2019
Change Type: Correction
Change Details: Following publication of the original article , we have been notified that one of the authors’ names is spelled incorrectly. In this Correction the incorrect and correct author name are shown.
Ethics approval and consent to participate
: This article comments on NHS Digital data in the public domain which present aggregated and anonymised data for large groups of patients.
: The authors declare that they have no competing interests.