Format

Send to

Choose Destination
See comment in PubMed Commons below
Obstet Gynecol. 1994 Jul;84(1):55-7.

Placenta previa and prior cesarean delivery: how strong is the association?

Author information

1
Division of Public Health Sciences, Fred Hutchinson Cancer Research Center, Seattle, Washington.

Abstract

OBJECTIVE:

To investigate the occurrence of placenta previa following a cesarean delivery.

METHODS:

We conducted a case-control study using 1984-1987 Washington state birth certificate data. Analysis was restricted to women who reported one or more previous live births. The study population included 490 women with a pregnancy complicated by placenta previa and 1477 randomly selected controls. Unconditional logistic regression was used for statistical analysis.

RESULTS:

After adjustment for confounding factors, the odds ratio for placenta previa in association with one or more previous cesarean deliveries was 1.48 (95% confidence interval 1.13-1.95).

CONCLUSIONS:

Women with a history of cesarean delivery are 50% more likely to have a subsequent birth complicated by placenta previa than those without such a history. This magnitude of excess risk is lower than the relative risks reported in previous studies.

PMID:
8008323
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Loading ...
    Support Center