Authors’ contributions
Julie Wagner provided overall scientific direction and wrote the initial draft of the manuscript. Angela Bermúdez-Millán, Thomas Buckley, and Orfeu M. Buxton directed data collection, interpreted results and edited the manuscript. Richard Feinn analyzed the data and prepared the tables and results section. Lindsay Master managed actigraphy data, wrote actigraphy methods and interpreted actigraphy results. Sengly Kong, Theanvy Kuoch, and Mary Scully supervised interventionists and data collectors and edited the manuscript.