Portal de Periódicos da CAPES

The relationship of placenta previa and history of induced abortion

2003; Elsevier BV; Volume: 81; Issue: 2 Linguagem: Inglês

10.1016/s0020-7292(03)00004-3

1879-3479

Lisa Johnson, Beth A. Mueller, Janet R. Daling,

Reproductive Health and Contraception

Abstract Objectives: We evaluated the risk of placenta previa being associated with a history of induced abortion by different surgical procedures. Methods: Cases ( n =192) were women who had a singleton delivery complicated by placenta previa at a major obstetric care hospital in western Washington state between April 1, 1990 and December 31, 1992. Controls ( n =622) were women with singleton deliveries not complicated by placenta previa or abruption. Odds ratios, determined by logistic regression, approximate the relative risks. Results: Vacuum aspiration abortion was not associated with an increased risk of placenta previa (OR 0.9, 95% CI 0.6–1.5). However, the risk of placenta previa increased with the number of sharp curettage abortions (OR 2.9, 95% CI 1.0–8.5 for ≥3). Conclusions: Risk of placenta previa may be increased in a dose response fashion by multiple sharp curettage abortions. However, vacuum aspiration does not confer an increased risk, and may be a better alternative.