Funding for this research was provided by:
Road Safety Trust
Received: 18 August 2020
Accepted: 24 November 2020
First Online: 14 January 2021
Ethics approval and consent to participate
: TARN data analyses are conducted using anonymised data which is governed by a code of practice approved by the Confidentiality Advisory Group who are appointed by the Health Research Authority. Additional individual ethical approval was not required for this analysis.
: Not applicable.
: The authors declare that they have no competing interests.