Accepted for Publication: July 7, 2013.
Published Online: November 11, 2013. doi:10.1001/jamapediatrics.2013.3445.
Study concept and design: Feinberg, Augustyn, Cabral, Beardslee, Silverstein.
Acquisition of data: Feinberg, Fitzgerald, Sandler, Ferreira-Cesar Suarez.
Analysis and interpretation of data: Feinberg, Augustyn, Chen, Cabral, Beardslee, Silverstein.
Drafting of the manuscript: Feinberg, Augustyn, Beardslee, Silverstein.
Critical revision of the manuscript for important intellectual content: Feinberg, Fitzgerald, Sandler, Ferreira-Cesar Suarez, Chen, Cabral, Beardslee, Silverstein.
Statistical analysis: Feinberg, Chen, Cabral, Silverstein.
Obtained funding: Feinberg.
Administrative, technical, and material support: Feinberg, Fitzgerald, Sandler, Ferreira-Cesar Suarez, Beardslee, Silverstein.
Study supervision: Feinberg, Augustyn, Fitzgerald, Ferreira-Cesar Suarez, Cabral, Beardslee.
Conflict of Interest Disclosures: None reported.
Funding/Support: This study was supported by grant R40MC15596 from the Maternal and Child Health Bureau (Dr Feinberg).
Role of the Sponsor: The Maternal and Child Health Bureau had no role in the design and conduct of the study; collection, management, analysis, and interpretation of the data; preparation, review, or approval of the manuscript; and decision to submit the manuscript for publication.
Additional Contributions: We acknowledge the contributions of the mothers who took part in this study and the support and effort of staff at the participating early intervention programs and Boston Medical Center’s Developmental and Behavioral Pediatric Division.