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A Summertime Peak of Down's Syndrome in Franklin County, Ohio
Christina Seifert, MD;
Annemarie Sommer, MD
Am J Dis Child. 1986;140(8):822-824.
Abstract
• In June, July, and August of 1984, more Infants than usual were born with Down's syndrome in Franklin County, Ohio. A direct physician survey was done, and chromosome reports were reviewed, resulting In the Identification of 11 Infants with Down's syndrome born during that period. Using a  2 analysis, the expected number of affected newborns was five, making the actual number of 11 significant. Although a summertime peak was observed, the yearly incidence of 1.09 per 1000 live births was within the expected range.
(AJDC 1986;140:822-824)
Author Affiliations
From the Department of Pediatrics (Drs Seifert and Sommer) and the Division of Genetics (Dr Sommer), The Ohio State University and Children's Hospital, Columbus.
Footnotes
Accepted for publication May 6, 1986.
Reprint requests to 700 Children's Drive, Columbus, OH 43205 (Dr Sommer).
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