An error occurred in this article by DiClemente et al (doi:10.1542/peds.2009-0892). On page 212, under the Acknowledgment section it reads, “This study was supported in part by the Emory Center for AIDS Research (grant P30 A1050409), Social and Behavioral Sciences Core.”

This should have read: “This study was supported in part by the Emory Center for AIDS Research (grant P30 A1050409), Social and Behavioral Sciences Core. Additionally, this research uses data from Add Health, a program project directed by Kathleen Mullan Harris and designed by J. Richard Udry, Peter S. Bearman, and Kathleen Mullan Harris at the University of North Carolina at Chapel Hill, and funded by grant P01-HD31921 from the Eunice Kennedy Shriver National Institute of Child Health and Human Development, with cooperative funding from 23 other federal agencies and foundations. Special acknowledgment is due to Ronald R. Rindfuss and Barbara Entwisle for assistance in the original design. Information...

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