[1] Childrens Hosp Eastern Ontario, Res Inst, Ottawa, ON, Canada
[2] Ottawa Hosp, Clin Epidemiol Program, Res Inst, Ottawa, ON, Canada
[3] Univ Ottawa, Dept Pediat, Ottawa, ON, Canada
[4] Better Outcomes Registry & Network, Prenatal Screening Ontario, Ottawa, ON, Canada
[5] Univ Ottawa, Sch Epidemiol & Publ Hlth, Ottawa, ON, Canada
[6] ICES, Toronto, ON, Canada
[7] Univ Ottawa, Dept Obstet & Gynecol, Ottawa, ON, Canada
[8] Univ Ottawa, Int & Global Hlth Off, Ottawa, ON, Canada
[9] Childrens Hosp Eastern Ontario, BORN Ontario, Ottawa, ON, Canada
[10] Ottawa Hosp, Dept Obstet Gynecol & Newborn Care, Ottawa, ON, Canada