Accepted for Publication: September 3, 2013.
Published Online: March 3, 2014. doi:10.1001/jamapediatrics.2013.4183.
Study concept and design: Magee and Lee.
Analysis and interpretation of data: All authors.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: All authors.
Statistical analysis: All authors.
Obtained funding: Magee.
Conflict of Interest Disclosures: None reported.
Funding/Support: Dr Magee is supported by an Australian Research Council Discovery Grant (DP110100857).
Role of the Sponsor: The funding agency had no role in the design and conduct of the study; collection, management, analysis, or interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Disclaimer: The findings and views reported in this article are those of the authors and should not be attributed to the Department of Families, Housing, Community Services and Indigenous Affairs; the Australian Institute of Family Studies; or the Australian Bureau of Statistics.
Additional Contributions: This article used unit record data from Growing Up in Australia: the Longitudinal Study of Australian Children. The Longitudinal Study of Australian Children is conducted in partnership among the Department of Families, Housing, Community Services and Indigenous Affairs; the Australian Institute of Family Studies; and the Australian Bureau of Statistics.