SARS-CoV-2 infection in pregnancy and infant outcomes in the first year of life: a retrospective cohort study
Wong K, Ducharme R, Murphy MSQ, Clarke AE, Brophy J, Hawken S, El-Chaâr D. BMC Pediatr. 2025; 25(1):842.
Publications
Concurrent emergency department use by a new mother with a disability and her newborn
Brown HK, Varner CE, Lunsky Y, Santiago-Jimenez M, Fung K, Cohen E, Guttmann A, Pituch E, Saunders N, Telner D, Vigod SN, Zwicker J, Ray JG. Pediatrics. 2025; e2025071883. Epub 2025 Sep 17.
Exposure to computed tomography before pregnancy and risk for pregnancy loss and congenital anomalies: a population-based cohort study
Simard C, Fu L, Odugbemi T, Simpson AN, Guan J, Tagalakis V, Delluc A, Ray JG. Ann Intern Med. 2025; Sep 9 [Epub ahead of print].
Multiple chronic conditions before pregnancy and risk of adverse maternal health outcomes: population-based cohort study
Brown HK, Fung K, Cohen E, Dennis CL, Grandi SM, Rosella LC, Varner C, Vigod SN, Wodchis WP, Ray JG. BJOG. 2025 Sep 3 [Epub ahead of print].
Infant emergency department use after midwifery- versus obstetrician-led perinatal care: a population-based cohort study
Ray JG, Podolsky S, Sorbara C, Stukel TA. BJOG. 2025; Aug 27 [Epub ahead of print].
New-onset mental illness among gestational carriers
Velez MP, Dayan N, Vigod SN, Buckett W, Flatt S, Shellenberger J, Ray JG. JAMA Netw Open. 2025 Jul 25.
Patterns of antepartum care in Ontario before and during a time of COVID-19 and virtual care: a population-based study
Lapinsky SC, Baxter NN, Sutradhar R, Everett K, Porter J, Yudin MH, Shore EM, Berger H, Campbell DM, Snelgrove JW, Simpson AN. Womens Health Issues. 2025; S1049-3867(25)00072-6. Epub 2025 Jul 8.
Does infant birthweight percentile identify mothers at risk of severe morbidity? A Canadian population-based cohort study
Ray JG, Berger H, Aoyama K, Cook JL, Aflaki K, Park AL. Matern Health Neonatol Perinatol. 2025; 11(1):19.
Use of health administrative data to identify migraine in individuals with a recognized pregnancy: a validation study in Ontario, Canada
Albanese CM, Bondy SJ, Lay C, Li Z, Guan J, Brown HK. Epidemiology. 2025; Jun 9 [Epub ahead of print].
Prenatal exposure to fine particulate matter composition and risk of cerebral palsy: a population-based retrospective cohort study in Ontario, Canada
Ahmed A, Hawken S, Gunz A, Talarico R, Yu C, Messerlian C, Zhang Y, Chen H, Weichenthal S, van Donkelaar A, Martin RV, Lavigne É. Environ Pollut. 2025; 375:126302. Epub 2025 Apr 23.