Table 1.
Baseline patient characteristics according to troponin measurement.
| Characteristics | Total | Measured Troponin | χ2 Test p-Value |
||||
|---|---|---|---|---|---|---|---|
| No | Yes | ||||||
| n | (%) | n | (%) | n | (%) | ||
| All patients | 3246 | (100.0) | 1770 | (54.5) | 1476 | (45.5) | |
| Sex | |||||||
| Male | 1935 | (59.6) | 1040 | (53.7) | 895 | (46.3) | 0.277 |
| Female | 1311 | (40.4) | 730 | (55.7) | 581 | (44.3) | |
| Age (years) | |||||||
| <40 | 603 | (18.6) | 349 | (57.9) | 254 | (42.1) | 0.140 |
| 40–59 | 1357 | (41.8) | 748 | (55.1) | 609 | (44.9) | |
| 60–69 | 541 | (16.7) | 281 | (51.9) | 260 | (48.1) | |
| ≥70 | 745 | (23.0) | 392 | (52.6) | 353 | (47.4) | |
| O2 saturation | |||||||
| >93% | 2327 | (71.7) | 1272 | (54.7) | 1055 | (45.3) | 0.807 |
| ≤93% | 919 | (28.3) | 498 | (54.2) | 421 | (45.8) | |
| Diabetes | |||||||
| No | 2434 | (75.0) | 1331 | (54.7) | 1103 | (45.3) | 0.759 |
| Yes | 812 | (25.0) | 439 | (54.1) | 373 | (45.9) | |
| Hypertension | |||||||
| No | 1403 | (43.2) | 789 | (56.2) | 614 | (43.8) | 0.088 |
| Yes | 1843 | (56.8) | 981 | (53.2) | 862 | (46.8) | |
| Heart failure | |||||||
| No | 3145 | (96.9) | 1717 | (54.6) | 1428 | (45.4) | 0.674 |
| Yes | 101 | (3.1) | 53 | (52.5) | 48 | (47.5) | |
| Coronary disease | |||||||
| No | 3029 | (93.3) | 1666 | (55.0) | 1363 | (45.0) | 0.043 |
| Yes | 217 | (6.7) | 104 | (47.9) | 113 | (52.1) | |
| Chronic heart disease | |||||||
| No | 3079 | (94.9) | 1695 | (55.1) | 1384 | (44.9) | 0.010 |
| Yes | 167 | (5.1) | 75 | (44.9) | 92 | (55.1) | |
| Chronic Kidney disease | |||||||
| No | 3094 | (95.3) | 1676 | (54.2) | 1418 | (45.8) | 0.064 |
| Yes | 152 | (4.7) | 94 | (61.8) | 58 | (38.2) | |
| Thromboembolic phenomena * | |||||||
| No | 3126 | (96.3) | 1693 | (54.2) | 1433 | (45.8) | 0.031 |
| Yes | 120 | (3.7) | 77 | (64.2) | 43 | (35.8) | |
| Stroke or TIA | |||||||
| No | 3154 | (97.2) | 1723 | (54.6) | 1431 | (45.4) | 0.501 |
| Yes | 92 | (2.8) | 47 | (51.1) | 45 | (48.9) | |
| Myopericarditis | |||||||
| No | 3201 | (98.6) | 1755 | (54.8) | 1446 | (45.2) | 0.004 |
| Yes | 45 | (1.4) | 15 | (33.3) | 30 | (66.7) | |
| Myocardial ischemia ** | |||||||
| No | 3174 | (97) | 1746 | (55.0) | 1428 | (45.0) | <0.001 |
| Yes | 72 | (3.0) | 24 | (33.3) | 48 | (66.7) | |
| Acute renal failure | |||||||
| No | 2866 | (88.3) | 1550 | (54.1) | 1316 | (45.9) | 0.161 |
| Yes | 380 | (11.7) | 220 | (57.9) | 160 | (42.1) | |
| Sepsis or septic shock | |||||||
| No | 2907 | (89.6) | 1605 | (55.2) | 1302 | (44.8) | 0.022 |
| Yes | 339 | (10.4) | 165 | (48.7) | 174 | (51.3) | |
| Invasive ventilation | |||||||
| No | 2625 | (80.9) | 1399 | (53.3) | 1226 | (46.7) | 0.004 |
| Yes | 621 | (19.1) | 371 | (59.7) | 250 | (40.3) | |
| Death | |||||||
| No | 2893 | (89.1) | 1559 | (53.9) | 1334 | (46.1) | 0.036 |
| Yes | 353 | (10.9) | 211 | (59.8) | 142 | (40.2) | |
* Deep venous thrombosis and pulmonary embolism; ** Acute myocardial infarction, myocardial ischemia, or coronary intervention. TIA, transient ischemic attack.