Biomaterial Database

Induced abortion and ectopic pregnancy in subsequent pregnancies. 1982

C S Chung, and R G Smith, and P G Steinhoff, and M P Mi

In a prospective study the rate of ectopic pregnancies of women with prior induced abortion was contrasted to two sets of comparison groups: a large set of unmatched observations and a smaller subset of matched and refined data. The crude rates of ectopic pregnancy among 4004 abortion and 98,316 control pregnancies, excluding repeat pregnancies of the same women, were 0.57% and 0.49%, respectively. No significant association was detected between history of induced abortion and ectopic pregnancy based on the chi 2 analysis on unmatched data stratified by maternal age and marital status (relative risk = 1.18, 95% confidence limits (CL) 0.57-1.79) or the multivariate logistic regression analysis on the smaller set of data (relative risk = 1.34, 95% CL 0.66-2.72). Within pregnancies of the induced abortion group the risk of ectopic pregnancy was not related to abortion procedure, use of laminaria, number of prior induced abortions, or length of gestation at time of abortion. However, there was a clear association between the presence of post-abortion infection or retained secundines and ectopic pregnancy with a fivefold increase for those pregnancies of women with a history of these complications over those without these complications within the induced abortion cohort.

UI	MeSH Term	Description	Entries
D007239	Infections	Invasion of the host organism by microorganisms or their toxins or by parasites that can cause pathological conditions or diseases.	Infection,Infection and Infestation,Infections and Infestations,Infestation and Infection,Infestations and Infections
D007795	Laminaria	A genus of BROWN ALGAE in the family Laminariaceae. Dried pencil-like pieces may be inserted in the cervix where they swell as they absorb moisture, serving as osmotic dilators.	Kjellmaniella,Laminaria Tents,Saccharina,Laminaria Tent
D010922	Placenta Diseases	Pathological processes or abnormal functions of the PLACENTA.	Placenta Disorders,Placental Diseases,Disease, Placenta,Disease, Placental,Diseases, Placenta,Diseases, Placental,Disorder, Placenta,Disorders, Placenta,Placenta Disease,Placenta Disorder,Placental Disease
D011247	Pregnancy	The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH.	Gestation,Pregnancies
D011271	Pregnancy, Ectopic	A potentially life-threatening condition in which EMBRYO IMPLANTATION occurs outside the cavity of the UTERUS. Most ectopic pregnancies (>96%) occur in the FALLOPIAN TUBES, known as TUBAL PREGNANCY. They can be in other locations, such as UTERINE CERVIX; OVARY; and abdominal cavity (PREGNANCY, ABDOMINAL).	Ectopic Pregnancy,Pregnancy, Extrauterine,Ectopic Pregnancies,Extrauterine Pregnancies,Extrauterine Pregnancy,Pregnancies, Ectopic,Pregnancies, Extrauterine
D011446	Prospective Studies	Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.	Prospective Study,Studies, Prospective,Study, Prospective
D012086	Reoperation	A repeat operation for the same condition in the same patient due to disease progression or recurrence, or as followup to failed previous surgery.	Revision, Joint,Revision, Surgical,Surgery, Repeat,Surgical Revision,Repeat Surgery,Revision Surgery,Joint Revision,Revision Surgeries,Surgery, Revision
D005260	Female		Females
D005865	Gestational Age	The age of the conceptus, beginning from the time of FERTILIZATION. In clinical obstetrics, the gestational age is often estimated from the onset of the last MENSTRUATION which is about 2 weeks before OVULATION and fertilization. It is also estimated to begin from fertilization, estrus, coitus, or artificial insemination.	Embryologic Age,Fetal Maturity, Chronologic,Chronologic Fetal Maturity,Fetal Age,Maturity, Chronologic Fetal,Age, Embryologic,Age, Fetal,Age, Gestational,Ages, Embryologic,Ages, Fetal,Ages, Gestational,Embryologic Ages,Fetal Ages,Gestational Ages
D006254	Hawaii	A group of islands in Polynesia, in the north central Pacific Ocean, comprising eight major and 114 minor islands, largely volcanic and coral. Its capital is Honolulu. It was first reached by Polynesians about 500 A.D. It was discovered and named the Sandwich Islands in 1778 by Captain Cook. The islands were united under the rule of King Kamehameha 1795-1819 and requested annexation to the United States in 1893 when a provisional government was set up. Hawaii was established as a territory in 1900 and admitted as a state in 1959. The name is from the Polynesian Owhyhii, place of the gods, with reference to the two volcanoes Mauna Kea and Mauna Loa, regarded as the abode of the gods. (From Webster's New Geographical Dictionary, 1988, p493 & Room, Brewer's Dictionary of Names, 1992, p2330)	Midway Island,Midway Islands