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.
Definition of crude. cruder. ; crudest. 1 : existing in a natural state and unaltered by cooking or processing crude oil crude ore. 2 archaic : unripe, immature. 3 : marked by the primitive, gross, or elemental or by uncultivated simplicity or vulgarity a crude stereotype crude tools crude jokes.