Prof Aranda talks to ecancertv at the UICC World Cancer Congress 2014 about the ways in which cancer treatment outcomes vary due to multiple factors such as class/income, location and race. Cancer outcomes are not as simple as low and middle income countries have poor prospects and developed countries have good. She notes the complexity of the issues involved, highlighting, for example, the fact that the installation of radiotherapy machines to a certain area may not be sufficient if people cannot afford the time out of work to receive treatment.