Risk of Late First and Second Trimester Miscarriage After Induced Abortion

Michael B. Bracken; Carol Bryce-Buchanan; Wichit Srisuphan; Theodore R. Holford; Robert Silten

doi:10.1055/s-2007-999839

American Journal of Perinatology, Inhaltsverzeichnis

Am J Perinatol 1986; 3(2): 84-91
DOI: 10.1055/s-2007-999839

ORIGINAL ARTICLE

Risk of Late First and Second Trimester Miscarriage After Induced Abortion

Michael B. Bracken, Carol Bryce-Buchanan, Wichit Srisuphan, Theodore R. Holford, Robert Silten

The Perinatal Epidemiology Unit and the Departments of Epidemiology and Public Health and Obstetrics and Gynecology, Yale University Medical School, 60 College Street, New Haven, Connecticut

Abstract

ABSTRACT

A cohort of 3110 women anticipating delivery were interviewed after their first prenatal visit at private obstetric practices and HMOs in Connecticut. In all 19.57% reported a prior induced abortion. The research participants were followed to determine whether the pregnancy was miscarried or delivered. In all, 2.19% miscarried in the late first or second trimester. The association of a prior induced abortion on risk for late miscarriage was analyzed by pregnancy history. Women who aborted their first pregnancy had no increased risk (RR = 0.56, 95% CI = 0.16, 1.92) of miscarriage compared with women pregnant for the first time, or compared with women experiencing their second pregnancy after delivering the first (RR = 0.69, 95% CI = 0.18, 2.60). No evidence was found for an increased risk of multiple induced abortion on subsequent miscarriage.

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