Association between Birth Order and Emergency Room Visits and Acute Hospital Admissions following Pediatric Vaccination: A Self-Controlled Study

• Steven Hawken,

  Affiliations ICES uOttawa, Ottawa, Ontario, Canada, Department of Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada, Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Ontario, Canada

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• Jeffrey C. Kwong,

  Affiliations Public Health Ontario, Toronto, Ontario, Canada, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada, Department of Family and Community Medicine, University of Toronto, Toronto, Ontario, Canada, Institute for Clinical Evaluative Sciences, Toronto, Ontario, Canada

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• Shelley L. Deeks,

  Affiliations Public Health Ontario, Toronto, Ontario, Canada, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada

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• Natasha S. Crowcroft,

  Affiliations Public Health Ontario, Toronto, Ontario, Canada, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada, Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada

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• Robin Ducharme,

  Affiliations ICES uOttawa, Ottawa, Ontario, Canada, Department of Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada, Department of Epidemiology and Community Medicine, University of Ottawa, Ottawa, Ontario, Canada

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• Douglas G. Manuel,

  Affiliations ICES uOttawa, Ottawa, Ontario, Canada, Department of Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada, Department of Family Medicine, University of Ottawa, Ottawa, Ontario, Canada

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• Kumanan Wilson

  * E-mail: kwilson@ohri.ca

  Affiliations ICES uOttawa, Ottawa, Ontario, Canada, Department of Clinical Epidemiology, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada, Department of Medicine, Ottawa Hospital Research Institute, University of Ottawa, Ottawa, Ontario, Canada

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