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(1962) have shown a clear-cut difference in the death rate due to cardiovascular disease in these two racial groups. Differences in the expression of risk factors, if detected, can be considered in terms of genetic and non-genetic differences between the two racial groups.Bassett et al. (1968) have described the present data and compared a large number of variables individually between Hawaiian and Japanese subjects. The present report attempts to answer the following questions using discriminant analysis: (1) What is the most economical linear combination of risk variables which maximizes the difference between the case and control groups in Hawaiians, and in Japanese? (2) Is there any heterogeneity in the effects of the significant risk factors between the two racial groups ? The advantages of the discriminant