Fig 1 Emergency admission rates in two high risk cohorts in Evercare and control practices. Period 3 (last before intervention): 1 October 2002 to 31 March 2003; period 6 (last intervention period): 1 October 2004 to 31 March 2005. Emergency admission rate in period is number of admissions in period divided by initial size of cohort at 1 July 2001 (for before intervention) or 1 July 2003 (for during intervention) all multiplied by 2. Bars on vertical lines denote 95% confidence intervals