As smokers have a higher chance of harm from surgery due to complications arising from their habit, it is more efficient to prioritize non-smokers  Failure to quit smoking before surgical procedures increases cardiac and pulmonary complications, impairs tissue healing, and is associated with more infections and other complications at the surgical site. For example, in a study of wound and other complications after hip or knee surgery, no smoker who quit beforehand developed a wound infection compared with 26% of ongoing smokers and 27% of those who only reduced tobacco use. Overall complications were reduced to 10% in those who quit smoking compared with 44% in those who continued1. This means that surgery costs more on average for smokers and is also less likely to be effective. Treating more smokers means devoting more resources for lower results. Therefore, prioritizing non-smokers, at least in certain areas of healthcare, would be beneficial to society as a whole. 1http Peters, M.J. (2007) Should smokers be refused surgery? British Medical Journal,