Descriptive statistics for geographies included in this analysis.

¹ Nigerian Bureau of Statistics, Nigeria: Social Statistics of Nigeria, 2012

² IDEAS baseline survey

³ The National Literacy Survey, June 2010, National Bureau of Statistics, Nigeria. www.nigerianstat.gov.ng

⁴ Nigerian Demographic and Health Survey preliminary report, 2013 http://dhsprogram.com/pubs/pdf/PR41/PR41.pdf

⁵ UNICEF (2011) Country factsheets. www.unicef.org/infobycountry/ethiopia_statistics.html

⁶ Indian population Census 2011, www.census2011.co.in/census/state/uttarpradesh.html

⁷http://www.unicef.org/nigeria/ng_publications_advocacybrochure.pdf

[for north east Nigeria as a whole]

⁸ United Nations Maternal Mortality Estimation Inter-agency group http://www.maternalmortalitydata.org/

⁹ Annual health survey bulletin 2011–12: Uttar Pradesh. http://www.censusindia.gov.in/vital_statistics/AHSBulletins/files2012/Uttar%20Pradesh_Bulletin%202011-12.pdf

¹⁰ Population Reference Bureau at http://www.un.org/esa/population/meetings/EGM-Fertility2009/Haub.pdf

¹¹Annual Abstract of Statistics 2011, National Bureau of Statistics, Nigeria.

Descriptive statistics for geographies included in this analysis.