biostudies-literatureUnknown8(1)Velez MPCIHR<h4>Background</h4>In Canada, increasing numbers of women, especially First Nations women, are affected by diabetes during pregnancy, which is a major risk factor for adverse maternal and neonatal outcomes. The aim of this study was to examine temporal trends in pregnancy outcomes and use of health care services in a population-based cohort of First Nations women compared to other women in Ontario according to diabetes status during pregnancy.<h4>Methods</h4>Using health administrative databases, we created annual cohorts of pregnant women from 2002/03 to 2014/15 and identified those with preexisting diabetes and gestational diabetes. We used the Indian Register to identify First Nations women. We estimated rates of adverse maternal and infant outcomes, and measures of use of health care sCMAJ openE214-E225https://www.ebi.ac.uk/biostudies/studies/S-EPMC7089761biostudies-literatureDiabetes during pregnancy and perinatal outcomes among First Nations women in Ontario, 2002/03-2014/15: a population-based cohort study.PMC7089761Green MEGriffiths RJacklin KSutherland RShah BRWalker JDVelez MPSlater MJones CfalseDiabetes during pregnancy and perinatal outcomes among First Nations women in Ontario, 2002/03-2014/15: a population-based cohort study.<h4>Background</h4>In Canada, increasing numbers of women, especially First Nations women, are affected by diabetes during pregnancy, which is a major risk factor for adverse maternal and neonatal outcomes. The aim of this study was to examine temporal trends in pregnancy outcomes and use of health care services in a population-based cohort of First Nations women compared to other women in Ontario according to diabetes status during pregnancy.<h4>Methods</h4>Using health administrative databases, we created annual cohorts of pregnant women from 2002/03 to 2014/15 and identified those with preexisting diabetes and gestational diabetes. We used the Indian Register to identify First Nations women. We estimated rates of adverse maternal and infant outcomes, and measures of use of health care s2020-01-01T00:00:00Z2020 Jan-Mar2025-04-19T11:51:10.143Z2025-04-19T11:51:10.143ZS-EPMC70897613219328210.9778/cmajo.20190195