Table 3.
Meta-analysis outcomes of clinical features.
| Clinical features | Number of studies | Number of patients | Heterogeneity | OR (95%CI) | P-value | |
|---|---|---|---|---|---|---|
| I2(%) | p-value | |||||
| Abdominal pain | 3 | 342 | 0 | 0.67 | 7.5 (2.4, 23.4) | 0.0005 |
| Anorexia | 3 | 342 | 43 | 0.17 | 2.8 (1.5, 5.1) | 0.0009 |
| Chest tightness | 2 | 184 | 0 | 0.72 | 0.7 (0.2, 2.4) | 0.55 |
| Cough | 20 | 3,267 | 8 | 0.36 | 1.4 (1.2, 1.7) | 0.0002 |
| Diarrhea | 13 | 2,552 | 56 | 0.007 | 2.3 (1.3, 4.9) | 0.005 |
| Dyspnea | 13 | 2,590 | 72 | < 0.00001 | 6.2 (3.6, 10.6) | < 0.00001 |
| Expectoration | 14 | 2,367 | 51 | 0.01 | 1.7 (1.2, 2.6) | 0.009 |
| Fatigue | 13 | 2,436 | 62 | 0.002 | 2.1 (1.3, 3.3) | 0.002 |
| Fever | – | – | 45 | 0.02 | 1.5 (1.2, 1.9) | 0.0005 |
| Headache | 12 | 2,480 | 0 | 0.94 | 1.1 (0.8, 1.6) | 0.48 |
| Hemoptysis | 3 | 1,273 | 0 | 0.77 | 4.0 (1.5, 11.3) | 0.008 |
| Myalgia | 8 | 1,773 | 67 | 0.006 | 1.6 (0.8, 3.1) | 0.15 |
| Nausea or vomiting | 5 | 1,602 | 44 | 0.9 | 0.9 (0.6, 1.5) | 0.66 |
| Pharyngalgia | 9 | 2,005 | 54 | 0.03 | 1.2 (0.5, 2.7) | 0.69 |