RC: Funnel Plots for Ratios of Counts

The RC funnel chart is used for monitoring the rates of event occurrences across multiple sites.

The RC funnel chart to the left shows the rate of patients seen per doctor across 10 hospitals.

To construct this chart, you provide the numerator variable (number of observed events) in the ‘Numerator’ field, the denominator variable (number of doctors) in the ‘Denominator’ field, and the grouping variable (Hospital) in the ‘Groups’ field (depicted below). Then, select the ‘Rate’ option from the ‘Data Settings’ dropdown.