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Birth Control Methods01:22

Birth Control Methods

Vasectomy is a surgical form of male sterilization that involves severing and sealing the vasa deferentia, preventing sperm from mixing with semen during ejaculation. Because a vasectomy does not impact the testes' ability to produce testosterone, hormone levels, libido, and sexual function generally remain unchanged. While vasectomy is highly effective in preventing pregnancy, with a success rate near 99.85%, rare cases of recanalization (spontaneous reconnection) can occur. Although vasectomy...
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Treatment Model for Young Patients with Psychogenic Erectile Dysfunction and Resultant Infertility
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Published on: May 30, 2025

Theory-based interventions for contraception.

Laureen M Lopez1, Elizabeth E Tolley, David A Grimes

  • 1Clinical Sciences, FHI 360, P.O. Box 13950, Research Triangle Park, North Carolina, USA, 27709.

The Cochrane Database of Systematic Reviews
|August 8, 2013
PubMed
Summary
This summary is machine-generated.

Theory-based interventions significantly improve contraceptive use and adherence. Applying established health behavior theories enhances effectiveness, particularly for adolescents, offering valuable insights for family planning programs.

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Area of Science:

  • Public Health
  • Behavioral Science
  • Reproductive Health

Background:

  • Theoretical frameworks are crucial for advancing health knowledge but are often absent in contraceptive education.
  • Existing research in HIV and STI prevention extensively utilizes theories, unlike many contraceptive interventions.
  • Health behavior change models offer potential for improving contraceptive uptake and adherence.

Purpose of the Study:

  • To review randomized controlled trials (RCTs) evaluating theory-based interventions for contraceptive choice and use.
  • To assess the impact of theoretical approaches on promoting contraceptive adherence and continuation.
  • To identify effective theoretical models for improving contraceptive behaviors.

Main Methods:

  • Conducted a systematic search of multiple databases for RCTs testing theory-based contraceptive interventions up to June 2013.
  • Included trials focused on improving contraceptive use, excluding those targeting high-risk groups or STI/HIV prevention.
  • Extracted data on primary outcomes including pregnancy, contraceptive choice/use, and adherence; analyzed results using Mantel-Haenszel odds ratios where appropriate.

Main Results:

  • Eight of 17 included trials demonstrated some intervention effect.
  • Theory-based interventions were associated with reduced pregnancy rates and increased use of effective contraceptive methods (oral contraceptives, hormonal contraceptives, dual methods).
  • Social Cognitive Theory (SCT) and the Health Belief Model (HBM) were among the frequently used theoretical bases, showing effectiveness, especially for adolescent interventions.

Conclusions:

  • Theory-based interventions show promise for improving contraceptive use and adherence, with eight high-quality trials providing supporting evidence.
  • Adaptable interventions, particularly those utilizing SCT, can be valuable for family planning programs, though many focused on group sessions for adolescents.
  • Further research with rigorous design and reporting is needed to refine theory-based approaches for diverse populations and low-resource settings.