About the Authors

Rory Leisegang

Affiliation Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa

Susan Cleary

Affiliation Health Economics Unit, School of Public Health and Family Medicine, University of Cape Town, Cape Town, South Africa

Michael Hislop

Affiliation Aids for AIDS, Medscheme, Cape Town, South Africa

Alistair Davidse

Affiliation Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa

Leon Regensberg

Affiliation Aids for AIDS, Medscheme, Cape Town, South Africa

Francesca Little

Affiliation Department of Statistical Sciences, University of Cape Town, South Africa

Gary Maartens

gary.maartens@uct.ac.za

Affiliation Division of Clinical Pharmacology, Department of Medicine, University of Cape Town, Cape Town, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

ICMJE criteria for authorship read and met: RL SC MH AD LR FL GM. Agree with the manuscript's results and conclusions: RL SC MH AD LR FL GM. Designed the experiments/the study: RL GM. Analyzed the data: RL MH AD FL. Collected data/did experiments for the study: MH. Wrote the first draft of the paper: RL. Contributed to the writing of the paper: SC MH AD LR FL GM. Ccontributed to the overall study design and methodology: SC. Collection and preparation of data used in the study: MH. Provided input into data analysis methodology: MH. Statistical consultant to the revision of this paper: FL. Reviewed various drafts of the paper: FL.