The rate of placenta previa at second birth was 4.4 per 1000 births for women with vaginal delivery at first birth and 8.7 for women with CS at first birth (unadjusted odds ratio = 1.88).
Our results are consistent with recent studies from other countries which typically found odds ratios ranging from 1.4 to 1.7. This is the first study of placenta previa risk in England using a ...
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