To the Editor: Kushi et al. reported the results of the Ireland—Boston Diet—Heart Study (March 28 issue),1 in which the daily consumption of various fats was expressed and analyzed in terms of the subject's caloric intake (e.g., as milligrams per 1000 kcal). The use of this unjustified “correction” of the raw data, which was also used in the Western Electric Study (reported by Shekelle et al. in the Jan. 8, 1981, issue),2 is unfortunate, because it is now clearly established that men who subsequently have coronary heart disease consume about 10 per cent fewer calories on average than those without.
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