RT Journal Article SR Electronic T1 Unwarranted variation in health care for children and young people JF Archives of Disease in Childhood JO Arch Dis Child FD BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health SP 60 OP 65 DO 10.1136/archdischild-2012-302041 VO 98 IS 1 A1 Cheung, C Ronny L H A1 Gray, J A Muir YR 2013 UL http://adc.bmj.com/content/98/1/60.abstract AB The study of geographical variation in healthcare has moved on since J Allison Glover's seminal study in 1938, and its value in highlighting inequity in access, quality and outcomes is well-established. Study of variation in healthcare for children, however, has proven more difficult due to barriers with data and idiosyncrasies in how we measure outcomes for children and families. This paper is a narrative review of unwarranted variations in healthcare for children, and discusses the potential of variation analysis to help researchers and policy makers improve child health services.