Table 2. Key Appropriate Use Variables.
| Variable | No. (%) | P value | |||
|---|---|---|---|---|---|
| Total (N = 2611) | Appropriate (n = 778) | Rarely appropriate (n = 272) | May be appropriate (n = 1561) | ||
| Chest pain or dyspnea | 2515 (96.3) | 776 (99.7) | 216 (79.4) | 1523 (97.6) | <.001 |
| Noninvasive evaluation results | |||||
| Low risk | 378 (18.1) | 15 (1.9) | 220 (89.1) | 143 (13.5) | <.001 |
| Intermediate risk | 1049 (50.3) | 239 (30.7) | 26 (10.5) | 784 (73.8) | |
| High risk | 639 (30.6) | 524 (67.4) | 0 | 115 (10.8) | |
| None performed | 526 (20.9) | 0 | 25 (9.2) | 501 (32.1) | |
| Antianginals, No. | |||||
| 0 | 621 (23.8) | 96 (12.3) | 100 (36.8) | 425 (27.2) | <.001 |
| 1 | 1305 (50.0) | 260 (33.4) | 167 (61.4) | 878 (56.2) | |
| 2 | 645 (24.7) | 400 (51.4) | 5 (1.8) | 240 (15.4) | |
| 3 | 40 (1.5) | 22 (2.8) | 0 | 18 (1.2) | |
| Coronary artery stenoses | |||||
| 1 | 1560 (59.7) | 404 (51.9) | 185 (68.0) | 971 (62.2) | <.001 |
| 2 | 702 (26.9) | 215 (27.6) | 76 (27.9) | 411 (26.3) | |
| 3 or left main | 332 (12.7) | 154 (19.8) | 11 (4.0) | 167 (10.7) | |