Table 1. The forward- and back-translation of the UBACC.

Original UBACC English version	UBACC Xhosa version	UBACC English back-translation
1. What is the purpose of the study that was just described to you?	1. Yintoni injongo yoluphondo lwenzziwayo ndigqiba ukukucacisela ngalo?	1. What is the purpose of the investigation that I have just explained to you?
2. What makes you want to consider participating in this study?	2. Yintoni ekwenze ukuba ufune ukuthabatha inxaxheba koluphando?	2. What made you want to take part in this investigation?
3. Do you believe this is primarily research or primarily treatment?	3. Ingaba ucinga ukuba olu luphando okanye lunyango?	3. Do you think this is an investigation or treatment?
4. Do you have to be in this study if you do not want to participate?	4. Ucinga ukuba kunyanzelekile na ukuba ube koluphando nokuba awufuni?	4. Do you think you must take part in this investigation even if you don’t want to?
5. If you withdraw from the study, will you still be able to receive regular treatment?	5. Ucinga ukuba uye wayeka ukuthabatha inxaxheba koluphando ungakwazi ukufumana unyango lwakho njengesiqhelo?	5. Do you think if you stop participating in this investigation you won’t be able to get your treatment as usual?
6. If you participate in this study, what are some of the things that you will be asked to do?	6. Ukuba uthe wathatha inxaxheba koluphando zeziphi ezinye zezinto ozakucelwa uzenze?	6. If you are taking part in this investigation what are the things that you will be asked to do?
7. Please describe some of the risks or discomforts that people may experience if they participate in this study	7. Ndicela uchaze ubungozi okanye ubunzima onokubufumana ukuba uthe wathatha inxaxheba koluphando?	7. Can you please explain some of the dangers, risks, harms or difficulties you may come across if you take part in this investigation?
8. Please describe some of the possible benefits of this study	8. Ndicela uchaze inzuzo/amanye amancedo anokufumaneka koluphando?	8. Can you explain the benefits, advice, help or other services you will get from this investigation?
9. Is it possible that being in this study will not have any benefit to you?	9. Ingaba igenzeka into yokuba oluphando lungangabi luncedo kuwe?	9. Do you think that the investigation may not help you?
10. Who will pay for your medical care if you are injured as a direct result of participating in this study? Replaced with: Do you have to agree to store your cells?	10. Ingaba kunyanzelekile ukuba imisebe yakho yegazi iyokugcinwa?	10. Do you have to agree to store your cells?