Table 2.
Characteristics of patients admitted for ACS during the case period (February 20 - March 31, 2020) as compared with intra-year (January 1 - February 19, 2020) and inter-year control periods (February 20 - March 31, 2019) divided by sex
| Characteristics | Case period (Feb 20 - Mar 31, 2020) | Intra-year control period (Jan 1 - Feb 19, 2020) | Inter-year control period (Feb 20 - Mar 31, 2019) | ||||||
|---|---|---|---|---|---|---|---|---|---|
|
|
|
|
|||||||
| Male (n=420) | Female (n=127) | P-value | Male (n=662) | Female (n=237) | P-value | Male (n=543) | Female (n=213) | P-value | |
| Age-yr | 66.7 ± 11.9 | 72.7 ± 11.9 | 0.000 | 67.7 ± 12.1 | 72.3 ± 11.2 | 0.000 | 67.4 ± 11.6 | 72.6 ± 11.9 | 0.000 |
| Age ≥ 65 yo | 244 (58.1%) | 90 (70.9%) | 0.010 | 400 (60.4%) | 184 (77.6%) | 0.000 | 303 (55.8%) | 159 (74.6%) | 0.000 |
| Known CAD | 95 (22.6%) | 17 (13.4%) | 0.024 | 152 (23.0%) | 38 (16.0%) | 0.025 | 47 (8.7%) | 41 (19.2%) | 0.000 |
| COPD | 39 (9.3%) | 8 (6.3%) | 0.292 | 62 (9.4%) | 21 (8.9%) | 0.818 | 126 (23.2%) | 26 (12.2%) | 0.001 |
| Residence-City | 151 (36.0%) | 46 (36.2%) | 0.956 | 241 (36.4%) | 87 (36.7%) | 0.934 | 194 (35.7%) | 82 (38.5%) | 0.477 |
| Presentation Symptom | |||||||||
| Angina | 313 (74.5%) | 86 (67.7%) | 0.130 | 458 (69.2%) | 155 (65.4%) | 0.283 | 386 (71.1%) | 153 (71.8%) | 0.839 |
| Dyspnea | 45 (10.7%) | 25 (19.7%) | 0.008 | 91 (13.7%) | 38 (16.0%) | 0.389 | 53 (9.8%) | 26 (12.2%) | 0.323 |
| Atypical chest pain | 22 (5.2%) | 8 (6.3%) | 0.645 | 31 (4.7%) | 22 (9.3%) | 0.010 | 38 (7.0%) | 24 (11.3%) | 0.054 |
| Major arrythmia or CA | 12 (2.9%) | 2 (1.6%) | 0.423 | 22 (3.3%) | 2 (0.8%) | 0.042 | 20 (3.7%) | 3 (1.4%) | 0.101 |
| ACS type | |||||||||
| STEMI | 190 (45.2%) | 58 (45.7%) | 0.932 | 284 (42.9%) | 107 (45.1%) | 0.549 | 228 (42.0%) | 90 (42.3%) | 0.947 |
| NSTEMI | 129 (30.7%) | 44 (34.6%) | 0.404 | 260 (30.3%) | 94 (39.7%) | 0.917 | 221 (40.7%) | 84 (39.4%) | 0.750 |
| UA | 101 (24.0%) | 25 (19.7%) | 0.306 | 118 (17.8%) | 36 (15.2%) | 0.356 | 94 (17.3%) | 39 (18.3%) | 0.746 |
| Angiographic findings | |||||||||
| Left main disease | 44 (10.5%) | 6 (4.7%) | 0.049 | 59 (8.9%) | 22 (9.3%) | 0.864 | 48 (8.8%) | 22 (10.3%) | 0.525 |
| 1-vessel disease | 181 (43.1%) | 65 (51.2%) | 0.108 | 278 (42.0%) | 95 (40.1%) | 0.609 | 193 (35.5%) | 91 (42.7%) | 0.067 |
| 2-vessel disease | 116 (27.6%) | 29 (22.8%) | 0.284 | 190 (28.7%) | 59 (24.9%) | 0.261 | 163 (30.0%) | 49 (23.0%) | 0.053 |
| 3-vessel disease | 84 (20.0%) | 20 (15.7%) | 0.285 | 132 (19.9%) | 37 (15.6%) | 0.143 | 127 (23.4%) | 40 (18.8%) | 0.169 |
| MINOCA | 8 (1.9%) | 9 (7.1%) | 0.003 | 14 (2.1%) | 22 (9.3%) | 0.000 | 24 (4.4%) | 25 (11.7%) | 0.000 |
ACS: acute cardiovascular syndrome; CA: cardiac arrest; CAD: coronary artery disease; COPD: chronic obstructive pulmonary disease; MINOCA: myocardial infarction with non-obstructive coronary arteries; NSTEMI: non-ST elevation myocardial infarction; STEMI: ST-elevation myocardial infarction; UA: unstable angina. CA was defined as ventricular fibrillation, pulseless electrical activity, asystole. Major arrythmia was defined as sustained ventricular tachycardia or life-threatening atrioventricular block leading to urgent coronary angiography.