ArticleCMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne2018
Intergenerational abortion tendency between mothers and teenage daughters: a population-based cohort study.
Article in CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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7 citing papers in PubMed, 17 citations in OpenAlex.
- New Hypertension After Pregnancy in Patients With Heart Disease.Journal of the American Heart Association · 2023Article
- Long-Term Cardiovascular Outcomes After Pregnancy in Women With Heart Disease.Journal of the American Heart Association · 2021Article
- Association of Maternal Age With Severe Maternal Morbidity and Mortality in Canada.JAMA network open · 2019Article
- Physician procedure volume and related adverse events after surgically induced abortion: a population-based cohort study.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2019Article
- Failure to monitor or prevent unintended pregnancy is the key intergenerational problem, not the pregnancy outcome.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2018Article
- The authors respond to "Failure to monitor or prevent unintended pregnancy is the key intergenerational problem, not the pregnancy outcome".CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2018Article
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Authors and funding
5 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundA teenage woman's sexual health practices may be influenced by her mother's experience. We evaluated whether there is an intergenerational tendency for induced abortion between mothers and their teenage daughters.
methodsWe conducted a retrospective population-based cohort study involving daughters born in Ontario between 1992 and 1999. We evaluated the daughters' data for induced abortions between age 12 years and their 20th birthday. We assessed each mother's history of induced abortion for the period from 4 years before her daughter's birth to 12 years after (i.e., when her daughter turned 12 years of age). We used Cox proportional hazard models to estimate a daughter's risk of having an induced abortion in relation to the mother's history of the same procedure. We adjusted hazard ratios (HRs) for maternal age and world region of origin, mental or physical health problems in the daughter, mother- daughter cohabitation, neighbourhood-level rate of teen induced abortion, rural or urban residence, and income quintile.
resultsA total of 431 623 daughters were included in the analysis. The cumulative probability of teen induced abortion was 10.1% (95% confidence interval [CI] 9.8%-10.4%) among daughters whose mother had an induced abortion, and 4.2% (95% CI 4.1%-4.3%) among daughters whose mother had no induced abortion, for an adjusted HR of 1.94 (95% CI 1.86-2.01). The adjusted HR of a teenaged daughter having an induced abortion in relation to number of maternal induced abortions was 1.77 (95% CI 1.69-1.85) with 1 maternal abortion, 2.04 (95% CI 1.91-2.18) with 2 maternal abortions, 2.39 (95% CI 2.19-2.62) with 3 maternal abortions and 2.54 (95% CI 2.33-2.77) with 4 or more maternal abortions, relative to none.
interpretationWe found that the risk of teen induced abortion was higher among daughters whose mother had had an induced abortion. Future research should explore the mechanisms for intergenerational induced abortion.
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