Accepted for Publication: January 17, 2013.
Published Online: June 10, 2013. doi:10.1001/jamapediatrics.2013.192.
Acquisition of data: Naughton, Maguire, Mann, Lumb, Tempest, Gracias.
Analysis and interpretation of data: Naughton, Maguire.
Drafting of the manuscript: All authors.
Critical revision of the manuscript for important intellectual content: Naughton, Kemp.
Obtained funding: Lumb, Kemp.
Administrative, technical, and material support: Mann, Lumb, Tempest.
Study supervision: Naughton, Maguire, Gracias, Kemp.
Conflict of Interest Disclosure: None reported.
Funding/Support: This study was funded by the National Society for the Prevention of Cruelty to Children.
Additional Contributions: Laura Wain provided editorial assistance. The reviewers conducting these reviews for the Welsh Child Protection Systematic Review Group were Rachel Brooks, MB, BS, MD, MSc, Sue Channon, PhD, Evender Harran, CQSW, Nia John, MB, BS, MLB, Orlena Kerek, MB, BS, Zarah Newman, CQSW, Ingrid Prosser, MB, BS, MSc, Alicia Rawlinson, MB, BS, Jane Rodgers, CQSW, and Elspeth Webb, MB, BS, BSc, MSc.