Results
The incidence of placental abruption decreased during the study period
for both immigrants (from 0.68% to 0.44%) and non-immigrants (from
0.80% to 0.34%). Immigrant women from the sub-Saharan African region
had an adjusted odds ratio of 1.35 (95% CI: 1.15-1.58) compared to
non-immigrants for placental abruption, whereas immigrant women from
Ethiopia had an adjusted odds ratio of 2.39 (95% CI 1.67-3.41). We
found a small variation in placental abruption incidence by other
countries or regions of birth, length of residence and reason for
immigration.