Hutcheon JA, et al. - Researchers conducted a population‐based cohort study linking provincial perinatal and blood transfusion registries in order to determine the extent to which hospitals vary in use of obstetrical blood transfusion. Across the study period, crude institutional transfusion rates ranged from 3.7 to 23.6 per 1,000, with an average of 8.3 per 1,000, among 44 hospitals at British Columbia hospital. This suggest wide variation in the use of blood transfusion in pregnant women between hospitals in British Columbia, Canada. Differences in patient case‐mix or institutional factors did not explain meaningful variation between hospitals in use of blood transfusion during pregnancy, suggesting that over‐ or under‐utilization of this resource may be occurring in obstetrical care.