To the Editor: As a Western Collaborative Group Study co-principal investigator,1 I shall identify omissions in the article by Ragland and Brand (Jan. 14 issue).2 Their identification clearly demonstrates that in the Western Collaborative Group Study, the mortality rate among Type A subjects was greater than that among Type B subjects both 8 1/2 and 23 years after their 1960 enrollment. First, the report did not indicate the number of Type A (1589) and Type B (1565) subjects in the Western Collaborative Group Study.3 Given this information, readers would have seen that the mortality rates among Type A patients at.
|Original language||English (US)|
|Number of pages||5|
|Journal||New England Journal of Medicine|
|State||Published - Jul 14 1988|
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