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Updated: May 27, 2026
06:05
The Participant-Reported Implementation Update and Score (PRIUS): A Novel Method for Capturing Implementation-Related Data Over Time
Published on: February 19, 2021
Summary
The IUD contraceptive program in Taiwan significantly reduced fertility among acceptors by 76%, far exceeding the natural decline in the general population. This indicates IUDs are highly effective for family planning.
Area of Science:
- Reproductive Health
- Demography
- Public Health Programs
Background:
- Taiwan's IUD contraceptive program aimed to assess its impact on fertility rates.
- Previous fertility levels of IUD acceptors were notably higher than the general married population.
Purpose of the Study:
- To evaluate the effectiveness of the Intrauterine Device (IUD) contraceptive program in Taiwan.
- To quantify the fertility decline among IUD acceptors compared to the general population.
Main Methods:
- Analysis of data from various studies and surveys on IUD program participants.
- Comparison of fertility rates before and after IUD acceptance.
- Calculation of 'open interval' (time since last birth) for acceptors versus a general population sample.
Main Results:
- IUD acceptors exhibited 58% higher fertility before acceptance than the general married population.
- Fertility declined by approximately 76% among IUD acceptors post-acceptance.
- Acceptors had shorter 'open intervals' (20.7 months) compared to the general sample (374 months).
Conclusions:
- The IUD program in Taiwan demonstrated a substantial reduction in fertility among acceptors.
- Insertion of approximately 4 IUDs could prevent one live birth annually, though longer-term demographic impact requires further study.
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