Table II.
Biochemical and haematological parametersa of COVID-19 patients with and without positive cultures
| Parameter | Positive culture |
P-value | |
|---|---|---|---|
| No (N = 123) | Yes (N = 89) | ||
| Serum creatinine concentration (mg/dL) | 1.53 ± 1.85 | 2.40 ± 1.85 | <0.0001 |
| Leucocyte count (/mm³) | 10,705 ± 8434 | 14,429 ± 7357 | <0.0001 |
| Urea (mg/dL) | 60.66 ± 49.28 | 113.7 ± 52.25 | <0.0001 |
| C-reactive protein (CRP) (mg/L) | 113.9 ± 98.76 | 159.6 ± 99.18 | 0.0002 |
| Haemoglobin concentration (g/dL) | 12.53 ± 2.01 | 11.23 ± 2.31 | <0.0001 |
| Platelet count (/mm³) | 268,233 ± 109,669 | 248,012 ± 118,474 | 0.1112 |
| Lactate concentration (mmol/L) | 1.53 ± 1.13 | 1.59 ± 1.05 | 0.4979 |
Data are presented as mean ± SD.
P-values calculated by Mann–Whitney U-test.
a
The values refer to tests carried out at the same time of secondary pathogen isolation.