Table 2.
Main symptoms, vital signs on admission, examinations performed, and laboratory tests at the time of admission among the groups analyzed
| Total (N = 163) | High viral load, Ct < 30 (N = 96) | Low viral load, Ct = > 30 (N = 67) | P-value | |
|---|---|---|---|---|
| Symptoms, n (%) | ||||
| Dyspnea | 96 (58.9) | 56 (58.3) | 40 (59.7) | 0.861 |
| Fever | 123 (76.9) | 77 (80.2) | 46 (71.9) | 0.221 |
| Cough | 87 (54.4) | 52 (54.2) | 35 (54.7) | 0.948 |
| Myalgia | 10 (6.3) | 5 (5.3) | 5 (7.8) | 0.516 |
| Diarrhea | 25 (15.6) | 15 (15.6) | 10 (15.6) | 1 |
| Chest pain | 14 (8.6) | 6 (6.3) | 8 (11.9) | 0.202 |
| Other symptoms | 79 (48.5) | 50 (52.1) | 29 (43.3) | 0.269 |
| Symptom time (days) | 5 (2–8) | 5.5 (2–8) | 5 (1.5–9) | 0.496 |
| Vital signs | ||||
| Heart rate (bpm) | 86 (73–102) | 82 (73–93) | 84.5 (70–100) | 0.566 |
| Systolic blood pressure (mmHg) | 124 (111–138) | 127 (109–139) | 125 (110–139) | 0.565 |
| Oxygen saturation (%) | 96 (91–99) | 95 (90–97) | 96 (90–98) | 0.229 |
| Electrocardiogram, n (%) | ||||
| Atrial fibrillation | 17 (11.3) | 14 (15.4) | 3 (5) | 0.48 |
| Left bundle branch block or right bundle branch block | 6 (4) | 2 (2.2) | 4 (6.7) | 0.169 |
| Radiological findings, n (%) | ||||
| Consolidation | 34 (20.9) | 16 (19.8) | 15 (22.4) | 0.688 |
| Frosted glass | 16 (9.8) | 12 (12.5) | 4 (6) | 0.168 |
| Bilateral infiltrators | 106 (65.4) | 62 (65.3) | 44 (65.7) | 0.957 |
| Laboratory tests | ||||
| Blood glucose (mg/dL) | 105 (89–136) | 106 (89–146) | 104 (88–136) | 0.87 |
| Glomerular filtration rate (mL/minute per 1.73 m2) | 93 (63–113) | 78 (48–110) | 93 (74–118) | 0.191 |
| Hemoglobin (g/dL) | 12.5 (11.2–13.9) | 11.8 (10.6–13.0) | 12,0(11.5–13.9) | 0.147 |
| Leukocytes (×109/L) | 6.450 (4.710–8.910) | 6.680 (4.530–9.555) | 7.775 (5.557–9.042) | 0.815 |
| Lymphocytes (×109/L) | 0.8 (0.4–0.1) | 0.6 (0.3–0.1) | 0.8 (0.2–0.1) | 0.542 |
| Platelets (×109/L) | 212 (157–282) | 190 (152–264) | 241 (158–328) | 0.068 |
| D-dimer (ng/mL) | 714 (431–1,679) | 1,102 (530–2018) | 965 (445–1947) | 0.886 |
| Lactate dehydrogenase (U/L) | 278 (220–387) | 308 (235–397) | 269 (231–412) | 0.833 |
| C-reactive protein (mg/dL) | 9 (3–16) | 9 (4–17) | 8.5 (3–18) | 0.922 |
| cTnI maximum (ng/L) | 13 (4–35) | 24 (9.5–58.5) | 8.5 (3–22.5) | 0.007 |
| Elevated cTnI | 29 (17.8) | 20 (20.8) | 9 (13.4) | 0.224 |
Ct = cycle threshold; cTnI = cardiac troponin I.