Table 2.
Demographic and clinical characteristics of patients with/without myocardial injury on admission.
| Total (n = 76) | With myocardial injury (n = 18) | Without myocardial injury (n = 58) | Z/χ2 | P value | |
|---|---|---|---|---|---|
| Age, median, (range), y | 54 (36-66) | 66 (56.5-78) | 48 (35-64) | -3.502 | <0.001 |
| Sex (men) | 44 (57.9%) | 12 (66.7%) | 32 (55.2%) | 0.745 | 0.388 |
| Fever | 54 (71.1%) | 9 (50.0%) | 45 (77.6%) | 5.083 | 0.024 |
| Cough | 42 (55.3%) | 9 (50.0%) | 33 (56.9%) | 0.264 | 0.607 |
| Chest pain/tightness | 32 (42.1%) | 7 (38.9%) | 25 (43.1%) | 0.1 | 0.752 |
| Respiratory rate∗ | 21 (3.39) | 22.3 (4.36) | 20.7 (3.02) | 0.09 | |
| Systolic pressure, mm Hg | 128 (117-138) | 124 (101-140) | 130 (118.75-138) | -1.517 | 0.129 |
| Diastolic pressure, mm Hg | 80 (73-89) | 75 (65.5-90) | 80 (76-89) | -1.646 | 0.1 |
| Hypertension | 25 (32.9%) | 6 (33.3%) | 19 (32.8%) | 0.002 | 0.964 |
| Diabetes | 11 (14.5%) | 3 (16.7%) | 8 (13.8%) | 0.092 | 0.762 |
| Cardiovascular and cerebrovascular diseases | 15 (19.7%) | 7 (38.9%) | 8 (13.8%) | 5.461 | 0.019 |
| Chronic pulmonary disease | 6 (7.9%) | 4 (22.2%) | 2 (3.4%) | 6.658 | 0.01 |
| With more than two comorbidities | 15 (19.7%) | 5 (27.8%) | 10 (17.2%) | 0.963 | 0.327 |
| Severe | 31 (40.8%) | 13 (72.2%) | 18 (31.0%) | 9.649 | 0.002 |
| Common | 45 (73.2%) | 5 (27.8%) | 40 (69.0%) | ||
| Death | 15 (19.7%) | 11 (61.1%) | 4 (6.9%) | 25.487 | <0.001 |
| Discharge | 59 (77.6%) | 6 (33.3%) | 53 (91.4%) |
∗Continuous variables were presented as mean (standard deviation (SD)). Other continuous variables were presented as median (interquartile range (IQR)).