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Related Experiment Video

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Fertility awareness-based mobile application for contraception.

Elina Berglund Scherwitzl1, Kristina Gemzell Danielsson2, Jonas A Sellberg1

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Summary
This summary is machine-generated.

This study found that a mobile app supporting fertility awareness-based methods (FABMs) for natural birth control resulted in a 7.5% annual pregnancy rate for typical use. Consistent protection on fertile days is key for effectiveness.

Keywords:
Basal body temperature methodbirth controlmenstrual cyclenatural family planning methodsovulation detectionpregnancy rateretrospective study

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Area of Science:

  • Reproductive Health
  • Contraception Technology
  • Digital Health

Background:

  • Fertility awareness-based methods (FABMs) are natural family planning approaches.
  • Mobile applications offer potential for enhanced user support in FABMs.
  • Effectiveness of app-supported FABMs for preventing unwanted pregnancies requires evaluation.

Purpose of the Study:

  • To retrospectively assess the effectiveness of a mobile app-supported FABM for preventing unwanted pregnancies.
  • To evaluate the app's utility as a natural birth control method.

Main Methods:

  • Retrospective analysis of data from 4054 women using the app for contraception.
  • Examination of 2085 woman-years of usage data.
  • Calculation of Pearl Index and cumulative pregnancy probability using life-table analysis.

Main Results:

  • Typical use Pearl Index was 7.0 pregnancies per 100 woman-years.
  • Perfect-use Pearl Index was 0.5 pregnancies per 100 woman-years.
  • Life-table analysis showed a 7.5% annual pregnancy rate (95% CI 5.9%–9.1%).

Conclusions:

  • The mobile application may enhance the effectiveness of FABMs.
  • Consistent protection during fertile days is crucial for successful pregnancy prevention.
  • App-supported FABMs show potential as a natural birth control option.