Methods:   Data from the Canadian Institute of Health Information (2003-2016) included all antepartum, peripartum, and postpartum hospitalizations and readmissions within 42 days of delivery in Canada (except Quebec). Results: There were 524 strokes among 3,907,262 deliveries (13.4 per 100,000): 58.6% were hemorrhagic strokes, 51.5% occurred in the postpartum period, and mortality was 7.4%.

Between 2003-2004 and 2015-2016, stroke incidence increased from 10.8 per 100,000 to 16.6 per 100,000 (p = 0.002). Risk factors for stroke included: age ≥40 years (adjusted odds ratio [AOR], 1.7; 95% confidence interval [CI], 1.1-2.6), preeclampsia (AOR, 7.1; 95% CI, 5.3-9.6), eclampsia (AOR, 65.9; 95% CI, 43.6-99.6), congenital heart disease (AOR, 38.1; 95% CI, 22.1-65.8), connective tissue disorders (AOR, 12.6; 95% CI, 6.1-26.9), sepsis (AOR, 7.6; 95% CI, 3.6-16.2), severe postpartum hemorrhage…