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Theory-based interventions for contraception.

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Summary
This summary is machine-generated.

Theory-based interventions significantly improve contraceptive use and choice among diverse populations. These evidence-based approaches, particularly those using social cognitive theory and motivational interviewing, are crucial for effective reproductive health strategies.

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Area of Science:

  • Public Health
  • Reproductive Health
  • Behavioral Science

Background:

  • Explicit use of theory in research enhances knowledge expansion.
  • Theories and models are widely used in HIV and STI prevention research.
  • Many educational interventions for contraception lack a clear theoretical foundation.

Purpose of the Study:

  • To review randomized controlled trials (RCTs) evaluating theory-based interventions for contraceptive choice and use.
  • To synthesize evidence on the effectiveness of theory-informed contraceptive interventions.

Main Methods:

  • Systematic search of multiple databases (PubMed, CENTRAL, POPLINE, Web of Science, ClinicalTrials.gov, ICTRP) up to November 2016.
  • Inclusion criteria: RCTs testing theory-based interventions for improving contraceptive choice or use.
  • Data extraction and quality assessment of included trials; analysis focused on reported outcomes due to intervention heterogeneity.

Main Results:

  • Included 10 new trials, totaling 25; nine trials showed intervention effects with moderate to high evidence quality.
  • Social cognitive theory-based interventions for adolescents reduced second births and increased effective contraceptive/condom use.
  • Motivational interviewing (MI) interventions showed increased effective contraception use, reduced ineffective use, and higher initiation/use of long-acting reversible contraception (LARC).

Conclusions:

  • Theory-based interventions, particularly those using social cognitive theory and motivational interviewing, demonstrate effectiveness in improving contraceptive use.
  • Interventions need adaptation for low-resource settings and specific client populations.
  • Improved reporting on the application of theory in intervention design and implementation is recommended.