Volume 21 - Article 22 | Pages 647–680

Rates of induced abortion in Denmark according to age, previous births and previous abortions

By Marie-Louise H. Hansen, Ditte Mølgaard-Nielsen, Lisbeth B. Knudsen, Niels Keiding

Print this page  Facebook  Twitter


Date received:16 Jun 2008
Date published:03 Nov 2009
Word count:6831
Keywords:abortion parity, abortion rates, family situation, fertility parity, urbanization


Background: Whereas the effects of various socio-demographic determinants on a woman’s risk of having an abortion are relatively well-documented, less attention has been given to the effect of previous abortions and births.
Objective: To study the effect of previous abortions and births on Danish women’s risk of an abortion, in addition to a number of demographic and personal characteristics.
Data and methods: From the Fertility of Women and Couples Dataset we obtained data on the number of live births and induced abortions by year (1981-2001), age (16-39), county of residence and marital status. Logistic regression analysis was used to estimate the influence of the explanatory variables on the probability of having an abortion in a relevant year.
Main findings and conclusion: A woman’s risk of having an abortion increases with the number of previous births and previous abortions. Some interactions were was found in the way a woman’s risk of abortion varies with calendar year, age and parity. The risk of an abortion for women with no children decreases while the risk of an abortion for women with children increases over time. Furthermore, the risk of an abortion decreases with age, but relatively more so for women with children compared to childless women. Trends for teenagers are discussed in a separate section.

Author's Affiliation

Marie-Louise H. Hansen - Københavns Universitet, Denmark [Email]
Ditte Mølgaard-Nielsen - Københavns Universitet, Denmark [Email]
Lisbeth B. Knudsen - Aalborg University, Denmark [Email]
Niels Keiding - Københavns Universitet, Denmark [Email]

Other articles by the same author/authors in Demographic Research

» TFR for males in Denmark: Calculation and tempo-correction
Volume 32 - Article 52

» Cause-specific measures of life years lost
Volume 29 - Article 41

» Cohort fertility patterns in the Nordic countries
Volume 20 - Article 14

» Biological and sociological interpretations of age-adjustment in studies of higher order birth rates
Volume 19 - Article 31

» Education and second birth rates in Denmark 1981-1994
Volume 17 - Article 8

» Modelling regional variation of first-time births in Denmark 1980-1994 by an age-period-cohort model
Volume 13 - Article 23

» The Fertility Pattern of Twins and the General Population Compared: Evidence from Danish Cohorts 1945-64
Volume 6 - Article 14

Most recent similar articles in Demographic Research

» Evaluating links between dynamic urban landscapes and under-five child mortality in Accra, Ghana
Volume 42 - Article 20    | Keywords: urbanization

» Migration signatures across the decades: Net migration by age in U.S. counties, 1950-2010
Volume 32 - Article 38    | Keywords: urbanization

» Putting on the moves: Individual, household, and community-level determinants of residential mobility in Canada
Volume 29 - Article 28    | Keywords: urbanization

» Multi-residence in France and Australia: Why count them? What is at stake? Double counting and actual family situations
Volume 23 - Article 1    | Keywords: family situation

» Men’s and women’s migration in coastal Ghana: An event history analysis
Volume 22 - Article 25    | Keywords: urbanization