Figure 1. Variation in colorectal cancer screening performance in 2007 between UW Health primary care clinics and physicians practicing at those clinics.

Black bubbles indicate average clinic performance for colorectal cancer screening (denominator is the population of patients who are included in the WCHQ denominator definition for this test and are included on the panel for a primary care physician practicing at that clinic). White bubbles indicate individual physician performance related to colorectal cancer screening for those patients on the physician’s panel and included in the WCHQ denominator definition. The size of the white bubble corresponds to the number of patients on the physician’s panel who are eligible for colorectal cancer screening. Providers with fewer than 30 patients in the denominator were excluded from these analyses.

Abbreviations: WCHQ, Wisconsin Collaborative for Healthcare Quality