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Trends and recurrence of placenta praevia: A population‐based study
Author(s) -
Roberts Christine L.,
Algert Charles S.,
Warrendorf Janna,
Olive Emily C.,
Morris Jonathan M.,
Ford Jane B.
Publication year - 2012
Publication title -
australian and new zealand journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.734
H-Index - 65
eISSN - 1479-828X
pISSN - 0004-8666
DOI - 10.1111/j.1479-828x.2012.01470.x
Subject(s) - placenta , medicine , obstetrics , pregnancy , biology , fetus , genetics
We determined recent trends and recurrence rates of placenta praevia in 790,366 deliveries in NSW . From 2001 to 2009, the rate of placenta praevia increased by 26%, from 0. 69% to 0. 87% (trend P < 0.001). The placenta praevia recurrence rate in a second birth was 4.8%. Two‐thirds of the increase in placenta praevia was accounted for by trends in known risk factors, and the unexplained portion may reflect changes in unidentified risk factors or in the threshold for placenta praevia diagnosis.