Horak, Natascha S. http://orcid.org/0000-0001-7990-5096
Eagle, Gillian http://orcid.org/0000-0002-9530-1310
Stein, Dan J. http://orcid.org/0000-0001-7218-7810
Lochner, Christine http://orcid.org/0000-0002-4766-3704
Funding for this research was provided by:
National Research Foundation (CPRR150622119950)
Article History
Accepted: 22 September 2020
First Online: 1 October 2020
Compliance with Ethical Standards
:
: Christine Lochner has received a research grant from the South African National Research Foundation (NRF). Natascha S. Horak has received a grantholder-linked Masters bursary from the NRF. Gillian Eagle and Dan J. Stein declare that they have no conflict of interest. All authors contributed to the study conception and design. Material preparation, data collection and analysis were performed by Natascha S. Horak and supervised by Gillian Eagle and Christine Lochner. The first draft of the manuscript was written by Natascha S. Horak, and Gillian Eagle and Christine Lochner assisted in refining this and subsequent versions of the manuscript. All authors read and approved the final manuscript.
: The overarching research project involving human participants was approved by the respective Research Ethics Committees at Stellenbosch University (reference number: 14/05/053) and at the University of Cape Town (reference number: 770/2014), and has been conducted in accordance with the ethical standards as laid down in the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards. In addition, this study was approved by the Human Research Ethics Committee at the University of Witwatersrand (Protocol number: MCLIN/17/004 IH), authorising the first author (NSH) to conduct this sub-study. Participation in the study was on a voluntary basis. All participants provided informed written consent for participation. Participants were compensated for their time and effort in the form of modest grocery vouchers, and transport was provided where necessary.