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Stuart M. Berman, MD; Carol J. R. Hogue, PhD
Pregnancy Epidemiology Branch Division of Reproductive Health

James S. Marks, MD, MPH
Epidemiology Branch Division of Nutrition Center for Health Promotion and Education Centers for Disease Control Atlanta

JAMA. 1985;253(10):1391-1392.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.—

"A Clinical Trial of Change in Maternal Smoking and its Effect on Birth Weight"¹ advances the argument that it is indeed smoking during pregnancy that is responsible for the smokers giving birth to lighter babies and not the constitution of the smoker. Yerushalmy² had argued the converse, that the behavioral and constitutional differences between smokers and nonsmokers and not the exogenous effect of smoking per se had accounted for the observed birth-weight differential. However, this study demonstrates how difficult it is, as observed by Goldstein,³ to nail the coffin closed on the ghost of Yerushalmy. Although we are not inclined to argue the Yerushalmy case, we do feel there are several ways that the analysis could be improved and the conclusions strengthened.

1. Although birth weight was greater among the treated group, the authors did not demonstrate that decreased smoking itself was responsible; the . . . [Full Text PDF of this Article]

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