Richardson, Kathryn https://orcid.org/0000-0002-0741-8413
Loke, Yoon K.
Fox, Chris
Maidment, Ian
Howard, Robert
Steel, Nicholas
Arthur, Antony
Boyd, Penelope J.
Aldus, Clare
Ballard, Clive
Savva, George M.
Funding for this research was provided by:
Health Technology Assessment Programme (14/221/02)
National Institute for Health Research
Article History
Received: 14 July 2020
Accepted: 20 October 2020
First Online: 24 November 2020
Ethics approval and consent to participate
: The study was approved by the Independent Scientific Advisory Committee for CPRD for Clinical Practice Research Datalink research (protocol 16_181). No further ethical approval was required for the analysis of the data. The CPRD Group has obtained ethical approval from a multi-centre research ethics committee for all purely observational research using CPRD data.
: Not applicable
: The authors declare no support from any organisation for the submitted work beyond the NIHR grants listed above; YKL reports personal fees from Thame Pharmaceuticals outside of the submitted work, and CB reports grants and personal fees from Acadia pharmaceutical company and Lundbeck and personal fees from Roche, Otusaka, Novartis, Eli Lilly, and Pfizer; no other relationships or activities that could appear to have influenced the submitted work.