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Association between serum 25-hydroxyvitamin D level and upper respiratory tract infection in the Third National Health and Nutrition Examination Survey.
BACKGROUND Recent studies suggest a role for vitamin D in innate immunity, including the prevention of respiratory tract infections (RTIs). We hypothesize that serum 25-hydroxyvitamin D (25[OH]D)Expand
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Trends in Bronchiolitis Hospitalizations in the United States, 2000–2009
OBJECTIVE: To examine temporal trend in the national incidence of bronchiolitis hospitalizations, use of mechanical ventilation, and hospital charges between 2000 and 2009. METHODS: We performed aExpand
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Testicular torsion and risk factors for orchiectomy.
OBJECTIVE To determine risk factors for testicular loss due to testicular torsion. DESIGN AND PARTICIPANTS Medical records of patients aged 1 to 25 years with a principal diagnosis of testicularExpand
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Prospective multicenter study of viral etiology and hospital length of stay in children with severe bronchiolitis.
OBJECTIVE To determine whether hospital length of stay(LOS) for acute bronchiolitis is influenced by the infecting pathogen. DESIGN A prospective observational cohort study was performed during 3Expand
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Vitamin D insufficiency in pregnant and nonpregnant women of childbearing age in the United States.
OBJECTIVE We evaluated vitamin D insufficiency in a nationally representative sample of women and assessed the role of vitamin supplementation. STUDY DESIGN We conducted secondary analysis of 928Expand
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Bronchiolitis in US Emergency Departments 1992 to 2000: Epidemiology and Practice Variation
Objective: To describe the epidemiology of US emergency department (ED) visits for bronchiolitis, including the characteristics of children presenting to the ED and the variability in bronchiolitisExpand
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Variation in institutional review board responses to a standard, observational, pediatric research protocol.
BACKGROUND Multicenter studies are becoming more common, and variability in local institutional review board (IRB) assessments can be problematic. OBJECTIVE To investigate the variability of IRBExpand
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Prospective Multicenter Study of Children With Bronchiolitis Requiring Mechanical Ventilation
OBJECTIVE: To identify factors associated with continuous positive airway pressure (CPAP) and/or intubation for children with bronchiolitis. METHODS: We performed a 16-center, prospective cohortExpand
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Prospective Multicenter Study of the Viral Etiology of Bronchiolitis in the Emergency Department
Abstract Objectives:  To determine the viral etiology of bronchiolitis and clinical characteristics of children age < 2 years presenting to the emergency department (ED) with bronchiolitis. Methods:Expand
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Hospital Length-of-stay Is Associated With Rhinovirus Etiology of Bronchiolitis
Objective: To determine whether hospital length-of-stay (LOS) for bronchiolitis is influenced by the causative virus: respiratory syncytial virus (RSV) or rhinovirus. Methods: This prospective studyExpand
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