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Related Experiment Video

Updated: Mar 24, 2026

Auricular Point Acupressure Therapy: A Safe and Effective Treatment for Postsurgical Abortion Recovery

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Published on: February 3, 2026

Shared risk aversion in spontaneous and induced abortion.

Ralph Catalano¹, Tim A Bruckner², Deborah Karasek³

¹School of Public Health, University of California, Berkeley, CA 94704, USA rayc@berkeley.edu.

Human Reproduction (Oxford, England)

|March 12, 2016

Summary

This summary is machine-generated.

Risk aversion correlates with both spontaneous and non-clinically indicated induced abortions, suggesting it influences conscious and non-conscious mechanisms controlling pregnancy outcomes. This implies decisions about continuing gestation are influenced by perceived costs and benefits.

Keywords:

abortion environmental effects epidemiology pregnancy pregnancy termination risk aversion

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Area of Science:

Reproductive Health
Behavioral Economics
Evolutionary Psychology

Background:

Risk aversion is theorized to enhance Darwinian fitness and influence conscious and non-conscious decisions.
These decisions may impact prospective offspring investment, affecting abortion rates over time.

Purpose of the Study:

To investigate the correlation between spontaneous abortion incidence and non-clinically indicated induced abortion incidence.
To determine if shared risk aversion influences both types of abortion within conception cohorts.

Main Methods:

Utilized Danish registry data from January 1995 to December 2009 (180 months).
Analyzed 1,351,800 gestations, including 156,780 spontaneous and 233,280 induced abortions.
Employed Box-Jenkins transfer functions and cross-correlation to assess associations, adjusting for autocorrelation, cohort size, and anomalies.

Main Results:

A positive association was found between spontaneous and non-clinically indicated induced abortions.
Conception cohorts with higher-than-expected spontaneous abortions also showed higher rates of non-clinically indicated induced abortions.

Conclusions:

Findings suggest risk aversion impacts both conscious and non-conscious mechanisms controlling parturition.
Abortion decisions, whether spontaneous or induced, appear linked to a woman's assessment of gestation costs/benefits.
Results may be limited to Denmark's registration system and population.