[A questionnaire method of epidemiological testing].
The predictive value of risk factors of colorectal cancer was studied on the basis of the results of a complex epidemiologic survey aimed at identifying risk groups. An optimal combination of these factors and the multi-factor technique of mathematical statistics were used in working out a decision instruction enabling one to select persons at high risk of colorectal cancer with an 80.7 per cent credibility. The study indicated the efficacy of the proposed technique for setting up risk groups during screening procedures.
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