Table 1.
Characteristics of patients with and without SARS-CoV-2 on day 7
| Variables | Positive (n = 122) | Negative (n = 65) | Z or χ2 | P value |
|---|---|---|---|---|
| Age, years | 47.5(34–52) | 43(33–50.5) | 1.495 | 0.14 |
| Male, n(%) | 90(73.8) | 53(81.5) | 1.422 | 0.23 |
| Diabetes, n(%) | 6(4.9) | 2(3.1) | 0.351 | 0.72 |
| T1,days | 305.5(263.8–348.5) | 315.0(265.5–348.0) | 0.065 | 0.95 |
| T2,days | 275.5(233.5–310.3) | 274.0(234.5–315.0) | 0.031 | 0.98 |
| Duration of fever, days | 2.0(0–3.0) | 1.0(0–2.0) | 1.277 | 0.20 |
| Laboratory findings | ||||
| ALT, U/L | 20.2(15.0–33.2) | 21.7(14.8–41.5) | 0.555 | 0.58 |
| AST, U/L | 19.5(16.0–25.0) | 20.0(16.5–25.5) | 0.526 | 0.60 |
| Glucose, mmol/L | 5.4(4.8–6.3) | 4.8(4.5–5.5) | 3.943 | < 0.01 |
| Creatinine, µmol/L | 69.3(58.1–76.9) | 69.5(58.9–79.6) | 0.546 | 0.59 |
| Uric acid, µmol/L | 304.6(259.5–363.9) | 329.8(273.3–395.3) | 1.806 | 0.07 |
| CRP, mg/L | 4.0(2.0–11.1) | 4.7(1.9–9.3) | 0.338 | 0.74 |
| Neutrophils, E + 09/L | 4.2(3.2–5.3) | 3.6(2.4–5.0) | 2.160 | 0.03 |
| Lymphocytes, E + 09/L | 1.1(0.7–1.4) | 1.2(0.9–1.6) | 2.014 | 0.04 |
| Platelets, E + 09/L | 202.0 (174.8–234.3) | 224.0(188.5–257.5) | 2.114 | 0.04 |
| CD4+T | 424.0(275.8–647.8) | 550.0(412.0–705.5) | 2.647 | < 0.01 |
| CD8+T | 310.5(203.8–483.0) | 359.0(260.5–494.0) | 1.550 | 0.12 |
| B cells count | 123.0(79.0–233.0) | 158.0(99.0–258.0) | 1.963 | 0.05 |
| CT findings | ||||
| Unilateral pneumonia, n(%) | 10(8.20) | 3(4.62) | 0.841 | 0.55 |
| Bilateral pneumonia, n(%) | 4(3.28) | 2(3.08) | 0.006 | 0.99 |
Data were expressed as median (IQR) for continuous variables and n (%) for categorical values, and were compared using Kruskal–Wallis test or Chi-square test. T1, duration from the first infection of vaccine to diagnosis; T2, duration from the second infection of vaccine to diagnosis; ALT, alanine aminotransferase; AST, aspartate transaminase; CRP, C-reaction protein; CT, computer tomography