Figure 4From: Funnel plots, performance variation and the Myocardial Infarction National Audit Project 2003–2004Funnel plot for percentage of patients receiving a beta blocker as secondary prevention medication on discharge from hospital. Data abstracted from the MINAP Third Public Report.[11] LCL = lower control limit, UCL = upper control limit, target = National Service Framework for coronary heart disease goal of 80%, target 25% = more than 25% from the goal.Back to article page