Expatriate health insurance customers may be interested to know that prostate cancer survivors who were smokers during diagnosis are much more likely to suffer from a recurrence than non-smokers.
The study, published in the Journal of the American Medical Association, was based on an analysis of 5,366 participants who were told they had the illness between 1986 and 2006.
Active smokers were 61 per cent more likely to both die and experience a recurrence than those who had never smoked, researchers at the Harvard School of Public Heath (HSPH) and the University of California noted.
Smoking also corresponded with a more aggressive disease at diagnosis and the risk of it proving to be fatal was also heightened.
"For smokers, quitting can impact their risk of dying from prostate cancer. This is another reason to not smoke," Edward Giovannucci, professor of nutrition and epidemiology at HSPH, said.
Ex-smokers of ten years or more were also found to have a similar chance of death to non-smokers.
Tobacco use increases an individual's risk of developing at least 50 serious health problems, according to the NHS.