American Journal of Epidemiology Copyright © 2005 by the Johns Hopkins Bloomberg School of Public Health All rights reserved
LETTERS TO THE EDITOR |
Re: "Preterm Delivery Rates in North Carolina: Are They Really Declining among Non-Hispanic African Americans?"
1 Perinatal Epidemiology Research Unit, Departments of Obstetrics and Gynaecology and Pediatrics, Dalhousie University, Halifax, Nova Scotia B3K 6R8, Canada
2 Divisions of Epidemiology and Biostatistics and Maternal-Fetal Medicine, Robert Wood Johnson Medical School, University of Medicine and Dentistry of New Jersey, New Brunswick, NJ 08901
| The first 10% of the full text of this article appears below. |
Vahratian et al. (1
) conclude that the recently observed decline in preterm birth among non-Hispanic African Americans in North Carolina is an artifact related to temporal reductions in the misclassification of full-term births (as preterm births). We are concerned that the bimodal birth weight distribution problem identified by Vahratian
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