Table 2.

Comprehensive Primary Care Practice Risk Stratification Method

Risk Stratification Method	Practice-Developed Algorithm	AAFP Available Algorithm	Payer Claims/EHR	Clinical Intuition	P Value
Number of practices	215	155	62	52
High-risk patients per primary care physician FTE, mean No. (SD)	282 (355)	181 (245)	171 (175)	218 (366)	.006
High-risk patients receiving care management per primary care physician FTE, mean No. (SD)	69 (148)	40 (61)	79 (119)	91 (200)	.036
Overall high-risk patients receiving care management per physician FTE, %	37	36	43	48	.128

AAFP = American Academy of Family Physicians; EHR = electronic health record; FTE = full-time equivalent.