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February 19, 2003

Exposure to Pets in Childhood and Risk of Atopic DisordersExposure to Pets in Childhood and Risk of Atopic Disorders

Author Affiliations

Letters Section Editor: Stephen J. Lurie, MD, PhD, Senior Editor.

JAMA. 2003;289(7):841-843. doi:10.1001/jama.289.7.841-a

To the Editor: It is not clear how Dr Ownby and colleagues1 operationalized exposure to pets during a child's first year of life. This is critical because the time window in infancy when allergic sensitization takes place may be quite narrow.2 Pets already present at birth may have had different effects than those that entered (or left) the household later in the first year of life. If parents with a wheezing infant decided to get rid of their pet after a few months, how did the authors define this exposure?

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