The Long-Term Effects of a Peer-Led Sex Education Programme (RIPPLE): A Cluster Randomised Trial in Schools in England

• Judith Stephenson ,

  *To whom correspondence should be addressed. E-mail: jstephen@gum.ucl.ac.uk

  Affiliation Department of Infection and Population Health, Division of Population Health, University College London, London, United Kingdom

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• Vicki Strange,

  Affiliation Social Science Research Unit, Institute of Education, London, United Kingdom

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• Elizabeth Allen,

  Affiliation Department of Infection and Population Health, Division of Population Health, University College London, London, United Kingdom

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• Andrew Copas,

  Affiliation Department of Infection and Population Health, Division of Population Health, University College London, London, United Kingdom

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• Anne Johnson,

  Affiliation Department of Infection and Population Health, Division of Population Health, University College London, London, United Kingdom

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• Chris Bonell,

  Affiliation London School of Hygiene & Tropical Medicine, London, United Kingdom

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• Abdel Babiker,

  Affiliation Medical Research Council, Clinical Trials Unit, London, United Kingdom

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• Ann Oakley,

  Affiliation Social Science Research Unit, Institute of Education, London, United Kingdom

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• the RIPPLE Study Team