Author Contributions: Dr Hack had full access
to all of the data in the study and takes responsibility for the integrity
of the data and the accuracy of the data analysis.
Study concept and design: Hack, Taylor, Drotar,
Acquisition of data: Hack, Cartar, Wilson-Costello,
Analysis and interpretation of data: Hack,
Taylor, Drotar, Schluchter, Cartar, Andreias, Wilson-Costello.
Drafting of the manuscript: Hack.
Critical revision of the manuscript for important
intellectual content: Taylor, Drotar, Schluchter, Cartar, Andreias,
Statistical analysis: Hack, Drotar, Schluchter,
Obtained funding: Hack.
Administrative, technical, or material support:
Hack, Cartar, Klein.
Study supervision: Hack, Taylor, Wilson-Costello.
Financial Disclosures: None reported.
Funding/Support: This study was supported by
grants RO1 HD39756 and MO1 RR00080 from the General Clinical Research of the
National Institutes of Health (NIH).
Role of the Sponsor: Following approval and
funding of the grant proposal by the NIH, the authors received no further
input from the NIH concerning the design, conduct of the study, collection,
management, analysis, and interpretation of the data, or preparation, review,
or approval of the manuscript.
Acknowledgment: We thank Miriam Curran, the
project coordinator, who interviewed the parents and administered some of
the questionnaires to the parents; Terry Reid, Jennifer Eppich, and Mary Morrow,
all research assistants, who tested the children and interviewed and administered
some of the questionnaires to the children and their parents; Nori Mercuri-Minich,
who assisted in data analysis; and Alpher Torres, who provided clerical assistance.
They were all employees of Case Western Reserve University and, with the exception
of Nori Mercuri-Minich and Alpher Torres who were paid by the department,
were all paid for their work/effort by the NIH grant.