Table 1

Diabetes Measures, Demographics, and Survey Response Rates in Higher- and Lower-Performing Practices

Quintile and Practice	Absolute % Change at 18 Months			Improvement Index^a at 18 Months	First NCQA Level^b (2008–2009)	Type of Practice	Size of Practice^c	Adaptive Reserve/Burnout Survey Response Rate, %

	HbA_1c <7%	BP <130/80 mm Hg	LDL-C <100 mg/dL
Higher performing
Practice A	15.8	35.1	14.4	21.7	2	Private	Small	72
Practice B	13.5	20.7	20.3	18.2	1	FQHC	Small	75
Practice C	12.5	12.6	10.2	11.8	3	Private	Small	71
Practice D	0.8	11.9	20.3	11.0	3	Private	Medium	97
Practice E	1.5	17.3	9.3	9.4	3	Private	Medium	12
Average	8.8	19.5	14.9	14.4	2.4	–	–	61
Lower performing
Practice U	−12.1	−4.1	−8.7	−8.3	1	FQHC	Small	63
Practice V	−10.0	−6.4	−10.8	−9.0	1	Health system	Medium	18
Practice W	−9.2	−17.7^d	−7.7	−11.6	3	Private	Solo/partner	58
Practice X	−9.6	−11.2	−14.2	−11.7	2	Private	Medium	39
Practice Y	−18.1	−2.1	−24.7	−15.0	1	Private	Solo/partner	73
Average	−11.8	−8.3	−13.2	−11.1	1.6	–	–	44

HbA_1c = glycated hemoglobin; BP = blood pressure; LDL-C = low-density lipoprotein cholesterol; NCQA = National Committee for Quality Assurance; FQHC = Federally Qualified Health Center.
Note: Practices were classified as higher or lower performing at 18 months (December 2009) as measured by the improvement index. Source: Clinical and NCQA data submitted by practices to the Improving Performance in Practice program.
↵a Calculated for each practice as the arithmetic mean of the absolute percent improvement in the 3 outcomes from baseline to 18 months.
↵b First NCQA Physician Practice Connections Patient-Centered Medical Home (PPC-PCMH) recognition level; possible levels range from 1 (lowest) to 3 (highest).
↵c Practice size categories were based on the number full-time equivalent (FTE) clinicians as solo/partner (1–2 FTE clinicians), small (3–4), or medium (5–9).
↵d Calculated from baseline to January 2010 because of an obvious data error in December 2009.