Crouch, Simone H. http://orcid.org/0000-0003-1911-5134
Botha-Le Roux, Shani http://orcid.org/0000-0001-5099-3408
Delles, Christian http://orcid.org/0000-0003-2238-2612
Graham, Lesley A. http://orcid.org/0000-0002-3901-5213
Schutte, Aletta E. http://orcid.org/0000-0001-9217-4937
Funding for this research was provided by:
South African Medical Research Council
National Department of Health
South African Research Chairs Initiative (SARChI) of the Department of Science and Technology
National Research Foundation (NRF) of South Africa (GUN 86895)
GlaxoSmithKline R&D (Africa Non-Communicable Disease Open Lab grant)
UK Medical Research Council
UK Government’s Newton Fund
Pfizer
Boehringer-Ingelheim
Novartis
Medi Clinic Hospital Group
Roche Diagnostics
British Heart Foundation (RE/13/5/30177, RE/18/6/34217)
Article History
Received: 9 December 2019
Accepted: 23 April 2020
First Online: 3 June 2020
Compliance with ethical standards
:
: Any opinion, findings, and conclusions or recommendations expressed in this material are those of the authors, and therefore, the NRF does not accept any liability in this regard. The authors declare that there is no conflict of interest.
: The study was approved by the Health Research Ethics Committee (HREC) of the North-West University (NWU-00058-18-A1), adheres to the 1964 Declaration of Helsinki and its later amendments and all participants in the study provided written informed consent prior to participation.