A population-based comparison of preterm neonatal deaths (22–34 gestational weeks) in France and Ontario: a cohort study

Northern Alberta Neonatal Program (Wang), Edmonton, Alta.; Better Outcomes Registry & Network Ontario (Yasseen, Sprague, Walker); Children’s Hospital of Eastern Ontario Research Institute (Yasseen, Sprague), Ottawa, Ont.; Obstetrical, Perinatal and Pediatric Epidemiology Team (Marchand-Martin, Goffinet, Ancel), Centre for Epidemiology and Biostatistics, Sorbonne Paris Cité Research Center (U1153), Institut national de la santé et de la recherche médicale; Paris Descartes University (Marchand-Martin, Goffinet, Ancel), Paris, France; ICES (Graves), Toronto, Ont.; Département Hospitalo-Universitaire on Risks in Pregnancy (Goffinet), Assistance Publique – HÔpitaux de Paris, Paris, France; Department of Obstetrics and Gynecology (Walker), University of Ottawa, Ottawa, Ont.; Clinical Research Unit (Ancel), Center for Clinical Investigation P1419, Cochin Broca Hôtel-Dieu Hospital, Paris, France; Department of Pediatrics (Lacaze-Masmonteil), Cumming School of Medicine, University of Calgary; Alberta Children’s Hospital Research Institute (Lacaze-Masmonteil), Calgary, Alta.

Northern Alberta Neonatal Program (Wang), Edmonton, Alta.; Better Outcomes Registry & Network Ontario (Yasseen, Sprague, Walker); Children’s Hospital of Eastern Ontario Research Institute (Yasseen, Sprague), Ottawa, Ont.; Obstetrical, Perinatal and Pediatric Epidemiology Team (Marchand-Martin, Goffinet, Ancel), Centre for Epidemiology and Biostatistics, Sorbonne Paris Cité Research Center (U1153), Institut national de la santé et de la recherche médicale; Paris Descartes University (Marchand-Martin, Goffinet, Ancel), Paris, France; ICES (Graves), Toronto, Ont.; Département Hospitalo-Universitaire on Risks in Pregnancy (Goffinet), Assistance Publique – HÔpitaux de Paris, Paris, France; Department of Obstetrics and Gynecology (Walker), University of Ottawa, Ottawa, Ont.; Clinical Research Unit (Ancel), Center for Clinical Investigation P1419, Cochin Broca Hôtel-Dieu Hospital, Paris, France; Department of Pediatrics (Lacaze-Masmonteil), Cumming School of Medicine, University of Calgary; Alberta Children’s Hospital Research Institute (Lacaze-Masmonteil), Calgary, Alta.

Northern Alberta Neonatal Program (Wang), Edmonton, Alta.; Better Outcomes Registry & Network Ontario (Yasseen, Sprague, Walker); Children’s Hospital of Eastern Ontario Research Institute (Yasseen, Sprague), Ottawa, Ont.; Obstetrical, Perinatal and Pediatric Epidemiology Team (Marchand-Martin, Goffinet, Ancel), Centre for Epidemiology and Biostatistics, Sorbonne Paris Cité Research Center (U1153), Institut national de la santé et de la recherche médicale; Paris Descartes University (Marchand-Martin, Goffinet, Ancel), Paris, France; ICES (Graves), Toronto, Ont.; Département Hospitalo-Universitaire on Risks in Pregnancy (Goffinet), Assistance Publique – HÔpitaux de Paris, Paris, France; Department of Obstetrics and Gynecology (Walker), University of Ottawa, Ottawa, Ont.; Clinical Research Unit (Ancel), Center for Clinical Investigation P1419, Cochin Broca Hôtel-Dieu Hospital, Paris, France; Department of Pediatrics (Lacaze-Masmonteil), Cumming School of Medicine, University of Calgary; Alberta Children’s Hospital Research Institute (Lacaze-Masmonteil), Calgary, Alta.

Northern Alberta Neonatal Program (Wang), Edmonton, Alta.; Better Outcomes Registry & Network Ontario (Yasseen, Sprague, Walker); Children’s Hospital of Eastern Ontario Research Institute (Yasseen, Sprague), Ottawa, Ont.; Obstetrical, Perinatal and Pediatric Epidemiology Team (Marchand-Martin, Goffinet, Ancel), Centre for Epidemiology and Biostatistics, Sorbonne Paris Cité Research Center (U1153), Institut national de la santé et de la recherche médicale; Paris Descartes University (Marchand-Martin, Goffinet, Ancel), Paris, France; ICES (Graves), Toronto, Ont.; Département Hospitalo-Universitaire on Risks in Pregnancy (Goffinet), Assistance Publique – HÔpitaux de Paris, Paris, France; Department of Obstetrics and Gynecology (Walker), University of Ottawa, Ottawa, Ont.; Clinical Research Unit (Ancel), Center for Clinical Investigation P1419, Cochin Broca Hôtel-Dieu Hospital, Paris, France; Department of Pediatrics (Lacaze-Masmonteil), Cumming School of Medicine, University of Calgary; Alberta Children’s Hospital Research Institute (Lacaze-Masmonteil), Calgary, Alta.

Northern Alberta Neonatal Program (Wang), Edmonton, Alta.; Better Outcomes Registry & Network Ontario (Yasseen, Sprague, Walker); Children’s Hospital of Eastern Ontario Research Institute (Yasseen, Sprague), Ottawa, Ont.; Obstetrical, Perinatal and Pediatric Epidemiology Team (Marchand-Martin, Goffinet, Ancel), Centre for Epidemiology and Biostatistics, Sorbonne Paris Cité Research Center (U1153), Institut national de la santé et de la recherche médicale; Paris Descartes University (Marchand-Martin, Goffinet, Ancel), Paris, France; ICES (Graves), Toronto, Ont.; Département Hospitalo-Universitaire on Risks in Pregnancy (Goffinet), Assistance Publique – HÔpitaux de Paris, Paris, France; Department of Obstetrics and Gynecology (Walker), University of Ottawa, Ottawa, Ont.; Clinical Research Unit (Ancel), Center for Clinical Investigation P1419, Cochin Broca Hôtel-Dieu Hospital, Paris, France; Department of Pediatrics (Lacaze-Masmonteil), Cumming School of Medicine, University of Calgary; Alberta Children’s Hospital Research Institute (Lacaze-Masmonteil), Calgary, Alta.

Northern Alberta Neonatal Program (Wang), Edmonton, Alta.; Better Outcomes Registry & Network Ontario (Yasseen, Sprague, Walker); Children’s Hospital of Eastern Ontario Research Institute (Yasseen, Sprague), Ottawa, Ont.; Obstetrical, Perinatal and Pediatric Epidemiology Team (Marchand-Martin, Goffinet, Ancel), Centre for Epidemiology and Biostatistics, Sorbonne Paris Cité Research Center (U1153), Institut national de la santé et de la recherche médicale; Paris Descartes University (Marchand-Martin, Goffinet, Ancel), Paris, France; ICES (Graves), Toronto, Ont.; Département Hospitalo-Universitaire on Risks in Pregnancy (Goffinet), Assistance Publique – HÔpitaux de Paris, Paris, France; Department of Obstetrics and Gynecology (Walker), University of Ottawa, Ottawa, Ont.; Clinical Research Unit (Ancel), Center for Clinical Investigation P1419, Cochin Broca Hôtel-Dieu Hospital, Paris, France; Department of Pediatrics (Lacaze-Masmonteil), Cumming School of Medicine, University of Calgary; Alberta Children’s Hospital Research Institute (Lacaze-Masmonteil), Calgary, Alta.

Northern Alberta Neonatal Program (Wang), Edmonton, Alta.; Better Outcomes Registry & Network Ontario (Yasseen, Sprague, Walker); Children’s Hospital of Eastern Ontario Research Institute (Yasseen, Sprague), Ottawa, Ont.; Obstetrical, Perinatal and Pediatric Epidemiology Team (Marchand-Martin, Goffinet, Ancel), Centre for Epidemiology and Biostatistics, Sorbonne Paris Cité Research Center (U1153), Institut national de la santé et de la recherche médicale; Paris Descartes University (Marchand-Martin, Goffinet, Ancel), Paris, France; ICES (Graves), Toronto, Ont.; Département Hospitalo-Universitaire on Risks in Pregnancy (Goffinet), Assistance Publique – HÔpitaux de Paris, Paris, France; Department of Obstetrics and Gynecology (Walker), University of Ottawa, Ottawa, Ont.; Clinical Research Unit (Ancel), Center for Clinical Investigation P1419, Cochin Broca Hôtel-Dieu Hospital, Paris, France; Department of Pediatrics (Lacaze-Masmonteil), Cumming School of Medicine, University of Calgary; Alberta Children’s Hospital Research Institute (Lacaze-Masmonteil), Calgary, Alta.

Northern Alberta Neonatal Program (Wang), Edmonton, Alta.; Better Outcomes Registry & Network Ontario (Yasseen, Sprague, Walker); Children’s Hospital of Eastern Ontario Research Institute (Yasseen, Sprague), Ottawa, Ont.; Obstetrical, Perinatal and Pediatric Epidemiology Team (Marchand-Martin, Goffinet, Ancel), Centre for Epidemiology and Biostatistics, Sorbonne Paris Cité Research Center (U1153), Institut national de la santé et de la recherche médicale; Paris Descartes University (Marchand-Martin, Goffinet, Ancel), Paris, France; ICES (Graves), Toronto, Ont.; Département Hospitalo-Universitaire on Risks in Pregnancy (Goffinet), Assistance Publique – HÔpitaux de Paris, Paris, France; Department of Obstetrics and Gynecology (Walker), University of Ottawa, Ottawa, Ont.; Clinical Research Unit (Ancel), Center for Clinical Investigation P1419, Cochin Broca Hôtel-Dieu Hospital, Paris, France; Department of Pediatrics (Lacaze-Masmonteil), Cumming School of Medicine, University of Calgary; Alberta Children’s Hospital Research Institute (Lacaze-Masmonteil), Calgary, Alta.

Northern Alberta Neonatal Program (Wang), Edmonton, Alta.; Better Outcomes Registry & Network Ontario (Yasseen, Sprague, Walker); Children’s Hospital of Eastern Ontario Research Institute (Yasseen, Sprague), Ottawa, Ont.; Obstetrical, Perinatal and Pediatric Epidemiology Team (Marchand-Martin, Goffinet, Ancel), Centre for Epidemiology and Biostatistics, Sorbonne Paris Cité Research Center (U1153), Institut national de la santé et de la recherche médicale; Paris Descartes University (Marchand-Martin, Goffinet, Ancel), Paris, France; ICES (Graves), Toronto, Ont.; Département Hospitalo-Universitaire on Risks in Pregnancy (Goffinet), Assistance Publique – HÔpitaux de Paris, Paris, France; Department of Obstetrics and Gynecology (Walker), University of Ottawa, Ottawa, Ont.; Clinical Research Unit (Ancel), Center for Clinical Investigation P1419, Cochin Broca Hôtel-Dieu Hospital, Paris, France; Department of Pediatrics (Lacaze-Masmonteil), Cumming School of Medicine, University of Calgary; Alberta Children’s Hospital Research Institute (Lacaze-Masmonteil), Calgary, Alta.