Received: 11 December 2019
Accepted: 21 April 2020
First Online: 25 April 2020
Ethics approval and consent to participate
: The University of Melbourne Human Ethics Committee approved the original study the data came from (HREC no. 1137237) and all participants provided written informed consent to participating in the study, and for their data to be used to answer other research questions related to OA management. This study has been performed in accordance with the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.