Bell, Joshua A.
Carslake, David
Hughes, Amanda
Tilling, Kate
Dodd, James W.
Doidge, James C.
Harrison, David A.
Rowan, Kathryn M.
Davey Smith, George
Article History
Received: 22 October 2023
Accepted: 29 August 2024
First Online: 13 September 2024
Declarations
:
: Approval for the collection and use of patient-identifiable data without consent in the Case Mix Programme was obtained from the Confidentiality Advisory Group of the Health Research Authority under Sect. 251 of the NHS Act 2006 (approval number PIAG2–10[f]/2005). All data were pseudonymised (patient identifiers removed) prior to extraction for this research.
: Not applicable.
: All authors have completed the ICMJE uniform disclosure form at and declare: no support from any organisation for the submitted work; no financial relationships with any organisations that might have an interest in the submitted work in the previous 3 years; no other relationships or activities that could appear to have influenced the submitted work.