Fig. 2

Funnel plots-control of lipids. Funnel plots of the centre specific scores for the threshold measure and the clinical action measure for the control of lipids. Each circle represents a centre. Centres were given a random identifier. Only centres with five or more diabetes patients were included. The red line represents the overall mean proportion of patients meeting the measure. Centres with a score more than two standard deviations from the overall mean proportion (black dashed line) are marked in blue and centres with a score more than three standard deviations from the overall mean proportion (black solid line) are marked in red