From the aDepartment of Epidemiology, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
bDepartment of Obstetrics, Gynecology, and Reproductive Sciences, School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
cMagee-Womens Research Institute, Pittsburgh, Pennsylvania
dDepartment of Obstetrics and Gynaecology, University of British Columbia, Vancouver, Canada.
Submitted May 14, 2022; accepted September 19, 2022
This study is supported by grant funding from the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD): R01 HD094777 to Bodnar LM and Hutcheon JA, as well as U10 HD063036, RTI International; U10 HD063072, Case Western Reserve University; U10 HD063047, Columbia University; U10 HD063037, Indiana University; U10 HD063041, University of Pittsburgh; U10 HD063020, Northwestern University; U10 HD063046, University of California Irvine; U10 HD063048, University of Pennsylvania; and U10 HD063053, University of Utah. Support was also provided by respective Clinical and Translational Science Institutes to Indiana University (UL1TR001108) and University of California Irvine (UL1TR000153). JAH holds a Canada Research Chair in Perinatal Population Health from the Federal Government of Canada.
The funders had no role in the study design, data collection and analysis, decision to publish or preparation of the manuscript.
The Nulliparous Pregnancy Outcomes Study: Monitoring Mothers-to-Be data described in the manuscript, as well as the code book, are publicly and freely available without restriction at https://dash.nichd.nih.gov/study/226675. The study investigators and the Data Coordinating and Analysis Center have copies of the entire database but cannot release that version to outside investigators owing to the permissions granted by the participants during the consent process and to protect participant confidentiality. Code for replications purposes can be found at: https://osf.io/95ahq/.
The authors report no conflicts of interest.
Supplemental digital content is available through direct URL citations in the HTML and PDF versions of this article (www.epidem.com).
Correspondence: Lisa M. Bodnar, University of Pittsburgh School of Public Health, 5129 Public Health, 130 DeSoto Street, Pittsburgh, Pennsylvania, 15261, USA. E-mail: [email protected]
