Figure 3. Summary of evidence from systematic review on contraceptive education.

^aIncludes decision aids, computer games, Facebook page, and smart phone apps.

^bMaterials provided or read as a script.

^cInterventions described in Kirby et al. 1989⁴⁹; Paperny and Starn 1989⁵⁴; Reis and Tymchyshyn 1992⁵⁶; O’Donnell et al. 1995^52,53; Smith and Whitfield 1995⁵⁹; Deijen and Kornaat 1997⁴⁶; Little 1998,⁴⁴ 2001⁴³; DeLamater et al. 2000⁴⁷; Lindenberg et al. 2002⁵⁰; Johnson et al. 2003⁴⁸; Mason et al. 2003⁵¹; Steiner et al. 2003⁶⁰; Roberto et al. 2007⁵⁷; Schwarz et al. 2008⁵⁸; Castano et al. 2012²⁵; Hall et al. 2013,³² 2014⁴²; Garbers et al. 2012^29,30; Vogt and Schaefer 2012⁴¹; Schwarz et al. 2013³⁸; Gilliam et al. 2014³¹; Kofinas et al. 2014³³; Davidson et al. 2015²⁶; Garbers et al. 2015²⁸; and Sridhar et al. 2015.⁴⁰

^dInterventions described in: O’Donnell et al. 1995^52,53; Little et al. 1998,⁴⁴ 2001⁴³; Chewning et al. 1999⁴⁵; DeLamater et al. 2000⁴⁷; Pedrazzini et al. 2000⁵⁵; Whitaker et al. 2010⁶¹; Ragland et al. 2011³⁶; Garbers et al. 2012^29,30; Schwarz et al. 2014³⁹; Lee et al. 2015³⁴; Ragland et al. 2015³⁷; de Reilhac et al. 2016²⁷; and Michie et al. 2016.³⁵

^eInterventions described in: Kirby et al. 1989⁴⁹; Paperny and Starn 1989⁵⁴; Reis and Tymchyshyn 1992⁵⁶; O’Donnell et al. 1995^52,53; Smith and Whitfield 1995⁵⁹; Deijen and Kornaat 1997⁴⁶; Little 1998,⁴⁴ 2001⁴³; DeLamater et al. 2000⁴⁷; Lindenberg et al. 2002⁵⁰; Mason et al. 2003⁵¹; Steiner et al. 2003⁶⁰; Roberto et al. 2007⁵⁷; Schwarz et al. 2008⁵⁸; Castano et al. 2012²⁵; Hall et al. 2013,³² 2014⁴²; Vogt and Schaefer 2012⁴¹; Schwarz et al. 2013³⁸; Gilliam et al. 2014³¹; Kofinas et al. 2014³³; Garbers et al. 2015²⁸; and Sridhar et al. 2015.⁴⁰

^fInterventions described in O’Donnell et al. 1995^52,53; Little et al. 1998,⁴⁴ 2001⁴³; Chewning et al. 1999⁴⁵; DeLamater et al. 2000⁴⁷; Pedrazzini et al. 2000⁵⁵; Ragland et al. 2011³⁶; Schwarz et al. 2014³⁹; Lee et al. 2015³⁴; Ragland et al. 2015³⁷; de Reilhac et al. 2016²⁷; and Michie et al. 2016.³⁵

^gInterventions described in Johnson et al. 2003⁴⁸; Mason et al. 2003⁵¹; Steiner et al. 2003⁶⁰; Kofinas et al. 2014³³; Davidson et al. 2015²⁶; and Sridhar et al. 2015.⁴⁰

^hIntervention described in: Schwarz et al. 2014³⁹; Lee et al. 2015.³⁴

ⁱIndicates intervention had a marginally significant effect on this outcome (0.05<p<0.1).

^jInterventions described in Deijen and Kornaat 1997⁴⁶; Schwarz et al. 2008⁵⁸; Vogt and Schaefer 2012⁴¹; and Kofinas et al. 2014.³³

^kIntervention described in Whitaker et al. 2010.⁶¹

^lInterventions described in Garbers et al. 2012³⁰; Gilliam et al. 2014³¹; and Sridhar et al. 2015.⁴⁰

^mIntervention described in Garbers et al. 2012.³⁰

ⁿInteraction with educational level described in Little et al. 2001⁴³ and Hall et al. 2013.³²

^oInteraction with educational level described in Little et al. 2001⁴³ and Regland et al. 2011.

^pInterventions described in Kirby et al. 1989⁴⁹; O’Donnell et al. 1995^52,53; Vogt and Schaefer 2012⁴¹; and Garbers et al. 2015.²⁸

^qInterventions described in O’Donnell et al. 1995^52,53 and Michie et al. 2016.³⁵

^rSignificant increase over baseline, but significance of increase relative to controls not reported.

^sInterventions described in Kirby et al. 1989⁴⁹; DeLamater et al. 2000⁴⁷; and Schwarz et al. 2008.⁵⁸

^tIntervention described in DeLamater et al. 2000.⁴⁷

^uInterventions described in Deijen and Kornaat 1997⁴⁶; Garbers et al. 2012²⁹; and Castano et al. 2012²⁵; Hall et al. 2013,³² 2014.⁴²

^vInterventions described in Chewning et al. 1999⁴⁵; Garbers et al. 2012²⁹; and Michie et al. 2016.³⁵

^wIntervention described in Schwarz et al. 2008.⁵⁸

^xIntervention described in Chewning et al. 1999.⁴⁵

KQ, key question.