| | Parameters | Recovered-symptoms group (n = 50) | Persisted-symptoms group (n = 55) | -value |
| | Age (yr), mean (SD) | 39.58 (15.33) | 39.21 (16.4) | 0.908 |
| | Sex | | Male, n | 29 | 41 | 0.072 | | Female, n | 21 | 14 | | BMI, mean (SD) | 24.55 (2.78) | 24.59 (2.69) | 24.57 (2.7) |
| | Comorbidity | | Smoking, n (%) | 0 | 3 (5.5) | 1.0 | | Addiction, n (%) | 0 | 1 (1.9) | 1.0 | | DM, n (%) | 5 (10) | 4 (7.3) | 0.73 | | HTN, n (%) | 6 (12) | 5 (9.1) | 0.75 | | DLP, n (%) | 8 (16) | 2 (3.6) | 0.05 | | IHD, n (%) | 1 (2) | 1 (1.8) | 1.0 | | Thyroid disorder, n (%) | 3 (6) | 5 (9.1) | 0.72 | | Depression, n (%) | 2 (4) | 0 | 0.22 | | Alzheimer, n (%) | 1 (2) | 0 | 0.48 | | Asthma, n (%) | 2 (4) | 4 (7.3) | 0.68 | | Sinusitis, n(%) | 2 (4) | 1 (1.8) | 0.60 | | IBD, n (%) | 1 (2) | 1 (1.8) | 1.0 | | Allergy history, n (%) | 6 (12) | 4 (7.3) | 0.51 | | Symptom onset (days), mean (SD) | 5.62 (1.52) | 5.58 (2.02) | 0.91 |
| | Lab tests | | CRP, mean (SD) | 18.4 (21.4) | 14.61 (10.94) | 0.44 | | WBC, mean (SD) | 5792.92 (1981.9) | 5736.72 (2597.7) | 0.41 | | Lymphocyte, mean (SD) | 1577.18 (896.17) | 1534.12 (78.32) | 0.79 | | Neutrophil, mean (SD) | 3690.36 (1638.6) | 3634.85 (1869.85) | 0.44 | | Platelet, mean (SD) | 195640 (6119.1) | 187963.64 (73705.1) | 0.56 | | Platelet-to-lymphocyte ratio, mean (SD) | 202.04 (371.53) | 146.82 (86.86) | 0.38 | | Neutrophil-to-lymphocyte ratio, mean (SD) | 4.58 (12.19) | 2.74 (1.58) | 0.87 | | Hemoglobin | 11.98 (0.9) | 12.3 (1.09) | 0.86 |
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