FREE NEJM E-TOC    HOME   |   SUBSCRIBE   |   CURRENT ISSUE   |   PAST ISSUES   |   COLLECTIONS   |   Search Term  Advanced Search

Sign in | Get NEJM's E-Mail Table of Contents — Free | Subscribe

Previous Volume 330:1391 May 12, 1994 Number 19 Next

	Since this article has no abstract, we have provided an extract of the first 100 words of the full text and any section headings.

	Full Text Purchase this article Add to Personal Archive Add to Citation Manager Notify a Friend E-mail When Cited Related Article by Cohen, T. J.

To the Editor: The recent study by Cohen et al. (Dec. 23 issue)¹ demonstrates a common misconception about randomization in clinical trials. Assignment of patients to one of two treatment groups by means of medical-record numbers does not constitute true randomization, because an individual patient does not have an equal chance of being assigned to either group at the time of enrollment. The allocation of medical-record numbers themselves is often not strictly sequential and is obviously not random. Thus, it would be more accurate to describe the method of assigning patients to treatment groups in such studies as assignment according . . . [Full Text of this Article]

HOME  |  SUBSCRIBE  |  SEARCH  |  CURRENT ISSUE  |  PAST ISSUES  |  COLLECTIONS  |  PRIVACY  |  HELP  |  beta.nejm.org Comments and questions? Please contact us. The New England Journal of Medicine is owned, published, and copyrighted © 2008 Massachusetts Medical Society. All rights reserved.