Theory and methods of epidemiologic study of home accidents.

Methods Problems in the design of epidemiologic studies may be categorized conveniently into those related to ascertainment and those concerned with sampling. Sampling problems confronted in home accident studies are not different, in any essential way, from those encountered in any other epidemiologic studies. With reference to sampling, the epidemiologic critics are far in advance of epidemiologic practitioners, so that the latter have yet to propose a study which the former cannot demolish by attacking the sampling procedures. The critics apparently have already discovered a whole host ofbiases which will only be demonstrated by studies yet to be devised. For these reasons, sampling problems will be treated only briefly in this report, where they are inextricably involved with the business