Design, rationale, and baseline characteristics of a cluster randomized controlled trial of pay for performance for hypertension treatment: study protocol

Table 3 Intervention components and incentive payouts

	Intervention components			Participants				Total estimated* incentive over entire study period
Study Arm	Audit/ feedback report	Individual physician incentive	Group incentive	Physicians	Non- physicians	Performance evaluated	Per outcome per patient incentive award	Individual Physician	Group†
Physician incentive	•	•		•		Physician	$9.10	$2681	N/A
Group incentive	•		•	•	•	Physician	$9.10	N/A	$17206
Physician and group incentives	•	•	•	•	•	Physician	$9.10	$2696	$18872
No incentives (control)	•			•		Physician	$9.10	N/A	N/A

*Estimates based on outcome rates from pilot study and projected improvement rates per period as follows: individual arm - 0.05 for process measures (guideline-recommendation medication and appropriate response) and 0.03 for blood pressure control; group arm - 0.02 for process measures and 0.01 for blood pressure control; combined arm - 0.06 for process measures and 0.04 for blood pressure control.
†For a group that includes seven physicians. Group incentive award determined by summing the incentive amounts earned by all seven physicians in the group.