1. McMaster Midwifery Research Center, Department of Obstetrics and Gynecology McMaster University Hamilton Ontario Canada
2. Department of Pediatrics McMaster University Hamilton Ontario Canada
3. R. Samuel McLaughlin Foundation—Exercise and Pregnancy Lab, School of Kinesiology The University of Western Ontario London Ontario Canada
4. Global Health McMaster University Hamilton Ontario Canada
5. School of Nursing McMaster University Hamilton Ontario Canada
6. Department of Health Research Methods, Evidence and Impact McMaster University Hamilton Ontario Canada
7. Biostatistics Unit, Father Sean O'Sullivan Research Centre St Joseph's Healthcare Hamilton Hamilton Ontario Canada
8. Public Health Services—Healthy Families, Healthy & Safe Communities Hamilton Ontario Canada