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J Thorac Cardiovasc Surg 2006;131:264-265
© 2006 The American Association for Thoracic Surgery
Editorial |
Division of Cardiovascular Anesthesiology, The Texas Heart Institute at St. Luke's Episcopal Hospital, and Baylor College of Medicine, Houston, Tex.
Received for publication October 21, 2005; accepted for publication October 27, 2005. * Address for reprints: Nancy A. Nussmeier, MD, Division of Cardiovascular Anesthesiology, The Texas Heart Institute at St Luke's Episcopal Hospital, PO Box 20345, MC 1-226, Houston, TX 77225-00345. (Email: nnussmeier@heart.thi.tmc.edu).
| The first 20% of the full text of this article appears below. |
In this issue of the Journal, Toumpoulis and colleagues
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report the results of their study comparing 2598 men with 1162 women in terms of the demographic and perioperative factors that predict long-term (5-year) postoperative survival after coronary artery bypass grafting (CABG). The presentation of data is unusual in its emphasis on the number of independent predictors in one gender versus the other. Although there were more predictors in men, twice as many men as women were studied, making the statistical tests performed on the men's data more powerful than those performed on the women's data. Therefore, the reported gender differences in the absolute number of predictors may be merely a statistical artifact. Also, cause of death was not captured, so it is possible that many of the reported deaths
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