Table 2. Baseline demographic characteristics of all patients stratified by quintile of PCI rate.

Variable	Total #,%	Quintile 1 #,%	Quintile 2 #,%	Quintile 3 #,%	Quintile 4 #,%	Quintile 5 #,%
Total	380981, 100	55727, 100	72942, 100	88886, 100	83416, 100	80010, 100
Age Mean (SD)	64.5, 12.2	64.5, 12.1	64.4, 12.2	64.8, 12.3	64.4, 12.2	64.5, 12.1
Male	255693, 67.1	39051, 70.1	49703, 68.1	59823, 67.3	55316, 66.3	51800, 64.7
White Race	341206, 89.6	49172, 88.2	63615, 87.2	79543, 89.5	76658, 91.9	72218, 90.3
Private Insurance	244820, 64.3	36012, 64.6	47037, 64.5	58442, 65.8	52345, 62.8	50984, 63.7
Public Insurance	217889, 57.2	30120, 54.1	41152, 56.4	49675, 55.9	47988, 57.5	48954, 61.2
Non-US Insurance	137, 0.04	20, 0.04	24, 0.03	59, 0.07	19, 0.02	15, 0.02
No Insurance	23817, 6.3	3070, 5.5	4934, 6.8	5734, 6.5	5350, 6.4	4729, 5.9