The Risk of Birth Defects among Children of Persian Gulf War Veterans
David N. Cowan, Ph.D., M.P.H., Robert F. DeFraites, M.D., M.P.H., Gregory C. Gray, M.D., M.P.H., Mary B. Goldenbaum, M.L.S., and Samuel M. Wishik, M.D., M.P.H.
Background There has been suspicion that service in the PersianGulf War affected the health of veterans adversely, and therehave been claims of an increased rate of birth defects amongthe children of those veterans.
Methods We evaluated the routinely collected data on all livebirths at 135 military hospitals in 1991, 1992, and 1993. Thedata base included up to eight diagnoses from the InternationalClassification of Diseases, 9th Revision, Clinical Modification(ICD-9-CM) for each birth hospitalization, plus informationon the demographic characteristics and service history of theparents. The records of over 75,000 newborns were evaluatedfor any birth defect (ICD-9-CM codes 740 to 759, plus neoplasmsand hereditary diseases) and for birth defects defined as severeon the basis of the specific diagnoses and the criteria of theCenters for Disease Control and Prevention.
Results During the study period, 33,998 infants were born toGulf War veterans and 41,463 to nondeployed veterans at militaryhospitals. The overall risk of any birth defect was 7.45 percent,and the risk of severe birth defects was 1.85 percent. Theserates are similar to those reported in civilian populations.In the multivariate analysis, there was no significant associationfor either men or women between service in the Gulf War andthe risk of any birth defect or of severe birth defects in theirchildren.
Conclusions This analysis found no evidence of an increase inthe risk of birth defects among the children of Gulf War veterans.
Source Information
From the Walter Reed Army Institute of Research, Washington, D.C. (D.N.C., R.F.D., M.B.G.); the Naval Health Research Center, San Diego, Calif. (G.C.G.); the Deployment Surveillance Team, Office of the Assistant Secretary of Defense for Health Affairs, and SRA Technologies, Inc., Falls Church, Va. (D.N.C.); and the University of California at San Diego, La Jolla (S.M.W.).
Address reprint requests to Dr. Cowan at SRA Technologies, Inc., 8110 Gatehouse Rd., Suite 600W, Falls Church, VA 22042.
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