Paudyal, Vibhu
Vohra, Neha
Price, Malcolm
Jalal, Zahraa
Saunders, Karen
Funding for this research was provided by:
Public Health England
Article History
Received: 16 May 2022
Accepted: 24 July 2023
First Online: 7 August 2023
Declarations
:
: This study was reviewed and approved by Data Access Request Service (DARS) Review Committee of NHS Digital and (approval reference number NIC-341255-H2F7H). The study was performed in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. Written consent from individual participant was not required as authors had no access to individual participant data as only aggregated data was available.
: Not applicable.
: The authors declare no competing interests.