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Induced abortion in the first trimester of pregnancy and risk of miscarriage.
Br J Obstet Gynaecol 1998; 105(4):418-21BJ

Abstract

OBJECTIVE

To analyse the relation between induced abortion and risk of subsequent miscarriage.

DESIGN

Case-control study conducted between February 1990 and May 1995.

PARTICIPANTS

Case group included 782 women (median age 32 years, range 14-46) admitted for spontaneous abortion (within the 12th week of gestation) to a network of obstetric departments in the greater Milan area. The control group was recruited among women who gave birth at term (> 37 weeks of gestation) to healthy infants on randomly selected days at the hospitals where cases had been identified. A total of 1543 controls (median age 30 years, range 14-45) were interviewed.

RESULTS

A total of 102 cases (13%) and 181 controls (12%) reported one or more induced abortions. No clear relation emerged between miscarriage and induced abortions. In comparison with women reporting no induced abortion the odds ratio (OR) for miscarriage were 1.1 (95% CI 0.8-1.4) in women reporting one induced abortion and 0.9 (95% CI 0.4-1.8) in women reporting two or more. Likewise, there was no association between time since last and age at first induced abortion and risk of miscarriage.

CONCLUSIONS

This study did not find any strong association between induced and spontaneous abortion.

Authors+Show Affiliations

Istituto di Ricerche Farmacologiche Mario Negri, Milano, Italy.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

9609269

Citation

Parazzini, F, et al. "Induced Abortion in the First Trimester of Pregnancy and Risk of Miscarriage." British Journal of Obstetrics and Gynaecology, vol. 105, no. 4, 1998, pp. 418-21.
Parazzini F, Chatenoud L, Tozzi L, et al. Induced abortion in the first trimester of pregnancy and risk of miscarriage. Br J Obstet Gynaecol. 1998;105(4):418-21.
Parazzini, F., Chatenoud, L., Tozzi, L., Di Cintio, E., Benzi, G., & Fedele, L. (1998). Induced abortion in the first trimester of pregnancy and risk of miscarriage. British Journal of Obstetrics and Gynaecology, 105(4), pp. 418-21.
Parazzini F, et al. Induced Abortion in the First Trimester of Pregnancy and Risk of Miscarriage. Br J Obstet Gynaecol. 1998;105(4):418-21. PubMed PMID: 9609269.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Induced abortion in the first trimester of pregnancy and risk of miscarriage. AU - Parazzini,F, AU - Chatenoud,L, AU - Tozzi,L, AU - Di Cintio,E, AU - Benzi,G, AU - Fedele,L, PY - 1998/6/3/pubmed PY - 1998/6/3/medline PY - 1998/6/3/entrez KW - Abortion, Induced KW - Abortion, Spontaneous KW - Biology KW - Case Control Studies KW - Demographic Factors KW - Developed Countries KW - Diseases KW - Europe KW - Family Planning KW - Fertility Control, Postconception KW - Italy KW - Longterm Effects KW - Mediterranean Countries KW - Population KW - Population Dynamics KW - Pregnancy KW - Pregnancy Complications KW - Pregnancy, First Trimester KW - Reproduction KW - Research Methodology KW - Research Report KW - Risk Factors KW - Southern Europe KW - Studies KW - Time Factors SP - 418 EP - 21 JF - British journal of obstetrics and gynaecology JO - Br J Obstet Gynaecol VL - 105 IS - 4 N2 - OBJECTIVE: To analyse the relation between induced abortion and risk of subsequent miscarriage. DESIGN: Case-control study conducted between February 1990 and May 1995. PARTICIPANTS: Case group included 782 women (median age 32 years, range 14-46) admitted for spontaneous abortion (within the 12th week of gestation) to a network of obstetric departments in the greater Milan area. The control group was recruited among women who gave birth at term (> 37 weeks of gestation) to healthy infants on randomly selected days at the hospitals where cases had been identified. A total of 1543 controls (median age 30 years, range 14-45) were interviewed. RESULTS: A total of 102 cases (13%) and 181 controls (12%) reported one or more induced abortions. No clear relation emerged between miscarriage and induced abortions. In comparison with women reporting no induced abortion the odds ratio (OR) for miscarriage were 1.1 (95% CI 0.8-1.4) in women reporting one induced abortion and 0.9 (95% CI 0.4-1.8) in women reporting two or more. Likewise, there was no association between time since last and age at first induced abortion and risk of miscarriage. CONCLUSIONS: This study did not find any strong association between induced and spontaneous abortion. SN - 0306-5456 UR - https://www.unboundmedicine.com/medline/citation/9609269/Induced_abortion_in_the_first_trimester_of_pregnancy_and_risk_of_miscarriage_ L2 - http://www.diseaseinfosearch.org/result/5922 DB - PRIME DP - Unbound Medicine ER -