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. 2006 Jan;21(1):13–21. doi: 10.1111/j.1525-1497.2005.00311.x

Table 4.

Allocation of Explainable Variance in Each Measure Across Four Levels of the Delivery System

Variance Explained by Percent of Delivery System Variance Accounted for by Each Level


Total Patient Characteristics Delivery System Effects Physician Practice Network Organization Health Plan
Organizational/structural features of care
 Organizational access 12.9 3.5 9.4 39.4 44.8 15.8 0.0

 Visit-based continuity 22.1 5.1 16.9 36.4 55.7 8.0 0.0

 Integration 10.6 5.2 5.3 22.9 77.1 0.0 0.0

 Clinical team 5.0 2.6 2.4 17.8 81.1 0.0 1.1

 Office staff 8.6 4.3 4.4 21.0 62.8 13.7 2.5

Physician-patient interactions
 Communication 8.6 2.4 6.2 61.7 38.3 0.0 0.0

 Whole-person orientation 15.3 6.5 8.8 74.1 24.9 0.0 1.0

 Health promotion 8.0 3.7 4.3 77.0 22.4 0.0 0.5

 Interpersonal treatment 9.2 2.6 6.6 83.9 15.8 0.0 0.2

 Patient trust 9.5 3.6 5.9 70.0 28.8 0.0 1.2