Fig. 1 (abstract P466).

Funnel plot depicting for each ICU its relation between the number of treated patients (x-axis) and the percentage of these patients with imprecise coding of the diagnosis (y-axis). The red (dotted) lines denote the 99.8% (95%) Confidence Intervall. The central line represents “local medians” estimated by the Locally Weighted Scatterplot Smoother – method.