Quitting smoking can reduce the risk of bladder cancer in older women, says a study, adding that the most significant reduction in risk occurred in the first 10 years after quitting.
The researchers used various statistical models to analyse the association between the years since quitting smoking and the risk of bladder cancer.
For the study, the researchers included data from 143,279 women, all of whom had supplied information on whether they had ever smoked cigarettes, how much they had smoked and whether they were current smokers.