Objective: Infants with respiratory syncytial virus (RSV) infection are at risk for developing apnea. The authors compared patients with RSV infection who develop apnea with those who do not, to help ambulatory physicians risk stratify their patients with RSV infection.
Methods: Entry criteria were age less than 1 year, RSV infection, and presentation to the authors' pediatric emergency departments. Random and weighted sampling techniques were used to identify the study group and provide the control sample. Charts were abstracted for 34 clinical variables.
Results: The study group consisted of 42 patients with apnea, and the control group consisted of 198 patients without apnea. Logistic regression analysis identified 2 independent variables associated with apnea: young age and presentation with apnea. Most patients with apnea were less than 2 months of age and were ill for less than 5 days.
Conclusions: Age and duration of illness may help clinicians determine which previously healthy infants are at risk for apnea.
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