Identification of prenatal opioid exposure within health administrative databases
Camden A, Ray JG, To T, Gomes T, Bai L, Guttmann A. Pediatrics. 2021; 147(1):e2020018507. Epub 2021 Jan 1.
Publications
Association of improved periconception hemoglobin A1c with pregnancy outcomes in women with diabetes
Davidson AJF, Park AL, Berger H, Aoyama K, Harel Z, Cohen E, Cook JL, Ray JG. JAMA Netw Open. 2020; 3(12):e2030207. Epub 2020 Dec 23.
Association between ABO and Rh blood groups and SARS-CoV-2 infection or severe COVID-19 illness: a population-based cohort study
Ray JG, Schull MJ, Vermeulen MJ, Park AL. Ann Intern Med. 2021; 174(3):308-15. Epub 2020 Nov 24.
Reproductive patterns, pregnancy outcomes and parental leave practices of women physicians in Ontario, Canada: the Dr Mom Cohort Study protocol
Cusimano MC, Baxter NN, Sutradhar R, Ray JG, Garg AX, McArthur E, Vigod S, Simpson AN. BMJ Open. 2020; 10:e041281. Epub 2020 Oct 21.
Primary care of mothers and infants by the same or different physicians: a population-based cohort study
Saunders NR, Ray JG, Diong C, Guan J, Cohen E. CMAJ. 2020; 192(36):E1026-36. Epub 2020 Sep 8.
Severe maternal morbidity and infant mortality in Canada
Aoyama K, Park AL, Davidson AJF, Ray JG. Pediatrics. 2020; 146(3):e20193870. Epub 2020 Aug 1.
Receipt of routine preventive care among infant daughters and sons of immigrant mothers in Ontario, Canada: a retrospective cohort study
Pulver A, Guttmann A, Ray JG, O'Campo PJ, Urquia ML. BMJ Open. 2020; 10(7):e036127. Epub 2020 Jul 31.
Prepregnancy renal function and risk of preterm birth and related outcomes
Harel Z, Park AL, McArthur E, Hladunewich M, Dirk JS, Wald R, Garg AX, Ray JG. CMAJ. 2020; 192(30):E851-7. Epub 2020 Jul 27.
Population-based study of serum ferritin in early pregnancy and adverse perinatal outcomes
Ray JG, Berger H, Park AL. Paediatr Perinat Epidemiol. 2020; 34(6):706-12. Epub 2020 Jun 16.
Risk of severe maternal morbidity or death in relation to elevated hemoglobin A1c preconception, and in early pregnancy: a population-based cohort study
Davidson AJF, Park AL, Berger H, Aoyama K, Harel Z, Cook JL, Ray JG. PLOS Med. 2020; 17(5):e1003104. Epub 2020 May 19.