^*Division of Behavioral Medicine and Clinical Psychology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH;

^†Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH;

^‡Department of Statistics, The Ohio State University, Columbus, OH;

^§Division of Biostatistics and Epidemiology, Cincinnati Children's Hospital Medical Center and University of Cincinnati College of Medicine;

^‖Abigail Wexner Research Institute at Nationwide Children's Hospital, Columbus, OH;

^¶Department of Pediatrics, the Ohio State University, Columbus, OH;

^**Department of Psychology, University of Calgary, Calgary, Alberta, Canada;

^††Alberta Children's Hospital Research Institute, University of Calgary, Calgary, Alberta, Canada;

^‡‡Hotchkiss Brain Institute, University of Calgary, Calgary, Alberta, Canada;

^§§Division of Physical Medicine & Rehabilitation, Cincinnati Children's Hospital Medical Center, Cincinnati, OH; and

^‖‖Department of Neurology and Rehabilitation Medicine, University of Cincinnati College of Medicine, Cincinnati, OH.

Address for reprints: Megan Narad, PhD, Division of Pediatric Rehabilitation Medicine, Cincinnati Children's Hospital Medical Center, 3333 Burnet Avenue, Cincinnati, OH 45229; e-mail: [email protected].

Disclosure: The authors declare no conflict of interest.

Supported by the National Institute of Child Health and Human Development (1R21HD089076-01 1F32HD088011-1). The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health. Data from the following clinical trials were used in this study: NCT01042899 and NCT00409448.