Figure 1.

Directly age standardised GP-referred first outpatient attendance rates as a 3-month rolling mean for Norfolk referral-management groups and England, per 1000 persons per month from April 2009 to March 2012. (The x axis label shows alternate month and year, for example 5 2009 = May 2009, 7 2009 = July 2009). The change from dashed to solid marker lines indicates the start of referral management in each group. Group referral-management approaches are abbreviated to internal peer review (IPR) and referral-management centre (RMC).