Table 2 General characteristics of study patients
|  | Chest pain patients with previous CIT performed (n = 1874) | Chest pain patients without previous CIT (n = 7545) | P value |
|---|---|---|---|
Age—year | |||
 Mean (SD) | 55.8 (10.3) | 48.5 (13.1) |  < 0.0001 |
 Median (IQR) | 55 (49, 63) | 49 (39, 57) |  < 0.0001 |
Gender—n (%) | |||
 Male | 924 (49.3) | 3641 (48.3) | 0.419 |
 Female | 950 (50.7) | 3903 (51.7) |  |
Race/ethnicity—n (%) | |||
 NHW | 665 (35.5) | 2164 (28.7) |  < 0.0001 |
 NHB | 683 (36.5) | 2739 (36.3) |  |
 Hispanic/Latino | 444 (23.7) | 2204 (29.2) |  |
 Others* | 82 (4.4) | 438 (5.8) |  |
Insurance—n (%) | |||
 Hospital sponsored | 544 (29.0) | 1745 (23.1) |  < 0.0001 |
 Medicare | 241 (12.9) | 473 (6.3) |  |
 Medicaid | 65 (3.5) | 234 (3.1) |  |
 Self-pay | 244 (13.0) | 2638 (35.0) |  |
 Others** | 780 (41.6) | 2455 (32.5) |  |
Mode of ED arrival—n (%) | |||
 Medical assisted | 613 (32.7) | 1968 (26.1) |  < 0.0001 |
 Private | 1021 (54.5) | 4690 (62.2) |  |
 Others*** | 240 (12.8) | 887 (11.8) |  |
 Patient follow-up, yes—n (%) | 1535 (81.9) | 4346 (57.6) |  < 0.0001 |