Ectopic pregnancy and prior induced abortion. | Zendy

Ann Aschengrau Levin | Zendy; Stephen C. Schoenbaum | Zendy; Phillip G. Stubblefield | Zendy; S Zimicki | Zendy; Richard R. Monson | Zendy; K J Ryan | Zendy

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Ectopic pregnancy and prior induced abortion.

Author(s) -

Ann Aschengrau Levin,

Stephen C. Schoenbaum,

Phillip G. Stubblefield,

S Zimicki,

Richard R. Monson,

K J Ryan

Publication year - 1982

Publication title -

american journal of public health

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.284

H-Index - 264

eISSN - 1541-0048

pISSN - 0090-0036

DOI - 10.2105/ajph.72.3.253

Subject(s) - ectopic pregnancy , abortion , medicine , obstetrics , confidence interval , pregnancy , confounding , relative risk , gynecology , induced abortions , pelvic inflammatory disease , family planning , population , research methodology , genetics , environmental health , biology

We compared the prior pregnancy histories of 85 multigravid women with an ectopic pregnancy and 498 multigravid delivery comparison subjects. We found a relationship between the number of prior induced abortions and the risk of ectopic pregnancy: the crude relative risk of ectopic pregnancy was 1.6 for women with one prior induced abortion and 4.0 for women with two or more prior induced abortions; however, use of multivariate techniques to control confounding factors reduced the relative risks to 1.3 (95 per cent confidence interval, 0.6-2.7) and 2.6 (95 per cent confidence interval, 0.9-7.4), respectively. The analysis suggests that induced abortion may be one of several risk factors for ectopic pregnancy, particularly for women who have had abortions plus pelvic inflammatory disease or multiple abortions.

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