The long-term effects of a peer-led sex education programme (RIPPLE): A cluster randomised trial in schools in England
2008

The Long-Term Effects of a Peer-Led Sex Education Programme (RIPPLE)

Sample size: 9000 publication 10 minutes Evidence: moderate

Author Information

Author(s): Judith Stephenson, Vicki Strange, Elizabeth Allen, Andrew Copas, Anne Johnson, Chris Bonell, Abdel Babiker, Ann Oakley

Primary Institution: University College London

Hypothesis

Does peer-led sex education reduce unintended teenage pregnancy compared to teacher-led sex education?

Conclusion

Peer-led sex education was not associated with a change in teenage abortions but may have led to fewer teenage births.

Supporting Evidence

  • One in 20 girls in both study arms had one or more abortions.
  • 7.5% of girls in the intervention arm had live births compared to 10.6% in the control arm.
  • Fewer girls in the peer-led arm reported a pregnancy by age 18.
  • There were no significant differences in other sexual health outcomes between the two groups.

Takeaway

This study looked at whether teaching sex education by older students helps younger students avoid getting pregnant. It found that it didn't change the number of abortions but might help reduce the number of babies born to teenagers.

Methodology

A cluster randomised trial with 27 schools in England, comparing peer-led and teacher-led sex education over 7 years.

Potential Biases

Potential bias due to differential follow-up rates and self-reported data.

Limitations

The trial did not have a 'no sex education' control group, limiting conclusions about the overall impact of sex education.

Participant Demographics

Pupils aged 13-14 years at baseline, from diverse schools in England.

Statistical Information

P-Value

0.64

Confidence Interval

95% CI 0.42–0.91

Statistical Significance

p = 0.64

Digital Object Identifier (DOI)

10.1371/journal.pmed.0050224

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