Bladder cancer cannot be prevented, but you may be able to reduce some of your risk for getting it. 1  Stop smoking. Cigarette smokers are much more likely to get bladder cancer than nonsmokers. 2  Avoid exposure to industrial chemicals, such as benzene substances and arylamines.
A crude incidence, prevalence, or mortality (death rate) is one that relates to results for a population taken as a whole, without subdivision or refinement. The crude mortality from lung cancer in men in England and Wales during 1985-89 was 1034/million/year compared with 575/million/year during 1950-54.
Prevalence is the proportion of the total number of cases to the total population and is more a measure of the burden of the disease on society with no regard to time at risk or when subjects may have been exposed to a possible risk factor.ncidence should not be confused with prevalence, which is the proportion of cases in the population at a given time rather than rate of occurrence of new cases.