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Use of discriminant analysis in the calculation of a prognostic index for the primary prevention of cardiovascular diseases.

Methods of multidimensional mathematical statistics were used for the combination of a set of simultaneous characteristics (risk factors) related to the development of ischemic heart disease into a single representative value as an index of the individual state. Successive values of this index give the time dependent changes of the individual state of health. Considering that these changes in time can be modelled linearly a classification criterion can be obtained taking also into account the evolution of the individual state of health.