Table 2.

Baseline characteristics of the patients within the 3 practices of interest

Characteristic	Practice A		Practice B		Practice C
	Black patients (n = 179)	White patients (n = 1,079)	Hispanic patients (n = 254)	White patients (n = 2,526)	Black patients (n = 117)	White patients (n = 491)
Demographics
Age (mean ± s.d.)	54.2 ± 15.2****	60.7 ± 17.8	34.5 ± 17.9	33.7 ± 18.9	42.0 ± 16.7***	51.2 ± 16.9
Gender (% female)	68.7	69.2	46.1***	57.9	67.5*	56.4
Medical conditions
Hypertension (%)	50.8	51.1	7.1	7.8	21.4	21.0
Hyperlipidemia (%)	33.5***	47.5	5.5	4.1	0.9*	5.3
Diabetes (%)	12.9	9.7	4.3*	2.0	12.0	7.5
Coronary disease (%)	7.8	11.7	1.2	1.0	0.0	0.0
Heart failure (%)	2.2	4.9	0.0	0.2	1.7	0.6
Atrial fibrillation (%)	1.1	3.9	0.0	0.1	0.0	0.2

* p < 0.05 when compared to white patients within the particular practice

** p < 0.01 when compared to white patients within the particular practice

*** p < 0.001 when compared to white patients within the particular practice

**** p < 0.0001 when compared to white patients within the particular practice