Al-Sumaih, Ibrahim
Donnelly, Michael
O’Neill, Ciaran
Article History
Received: 5 July 2021
Accepted: 17 February 2022
First Online: 7 March 2022
Declarations
:
: Ethical approval was not required as the dataset anonymized by the Healthcare Cost and Utilization Project (HCUP) prior to receipt. The methods in this study were carried out in accordance with the relevant guidelines and regulations. All those involved in statistical analysis have completed the HCUP Data Usage Agreement online training.
: Not applicable.
: The authors declare that they have no competing interests. Professor Michael Donnelly is a Senior Editorial Member for the BMC Health services research journal, and he had no role in handling of this manuscript.