Table 3.
Laboratory investigations and radiological findings in hospitalized COVID-19 patients, King Saud University Medical City, Saudi Arabia.
| Study variables | Number of patients | Median, (IQR) | Abnormal | |
|---|---|---|---|---|
| cutoff | n (%) | |||
| Basic investigations | ||||
| White blood cells (x10^9/L) | 605 | 7 (4.3) | <4 | 59 (9.8) |
| Lymphocytes (x10^9/L) | 583 | 1.1 (0.8) | <1 | 243 (41.7) |
| Platelets count (x10^9/L) | 605 | 233 (12) | <150 | 82 (13.6) |
| D-dimer (mcg/mL) | 534 | 1.1 (1.34) | >0.45 | 481 (90.1) |
| ALT (units/L) | 592 | 38 (36) | >61 | 146 (24.7) |
| AST (units/L) | 541 | 42 (39) | >37 | 291 (53.8) |
| Serum creatinine (mcmol/L) | 604 | 81 (45) | >115 | 121 (20) |
| Inflammatory markers | ||||
| Lactate (mmol/L) | 345 | 1.6 (0.8) | >2 | 84 (24.3) |
| Ferritin (mcg/L) | 529 | 575 (986) | >400 | 321 (60.7) |
| C-reactive protein (CRP) (mg/L) | 503 | 89 (105) | >20 | 433 (86.1) |
| Procalcitonin (PCT) (ng/mL) | 405 | 0.12 (0.375) | >0.5 | 107 (26.4) |
| Interleukin-6 (IL.6) (pg/mL) | 262 | 57.09 (113.3) | >7 | 245 (93.5) |
| Troponin (ng/L) | 433 | 7.4 (21) | >100 | 33 (7.6) |
| Creatinine kinase (CK) (units/L) | 328 | 138 (257.5) | >308 | 87 (26.5) |
| ECG: QT interval (ms) | 122 | 449.5 (39) | >440 | 79 (64.8) |
| Microbiology | ||||
| MERS CoV RT-PCR | 194 | Positive | 0 (0) | |
| HIV Ag/Ab | 372 | Positive | 0 (0) | |
| Hepatitis BsAg | 407 | Positive | 10 (2.5) | |
| TB QuantiFERON Gold Plus | 316 | Positive | 12 (3.8) | |
| Sputum culture | 129 | Positive | 18 (14) | |
| Blood culture | 332 | Positive | 20 (6) | |
| Imaging | ||||
| Chest X-ray | 545 | Normal | 159 (29.2) | |
| Infiltration. | 381 (69.9) | |||
| Extent | ||||
| Unilateral | 44 (11.5) | |||
| Bilateral | 337 (88.5) | |||
| Isolated Pleural Effusion | 5 (0.9) | |||
| CT chest | 45 | Normal | 5 (11.1) | |
| GGO | 16 (35.6) | |||
| Consolidation | 5 (11.1) | |||
| Both (GGO and Consolidation) | 16 (35.6) | |||
| PE | 3 (6.7) |
CT: computed tomography, GGO: ground-glass opacity, ECG: electrocardiogram, HIV: human immunodeficiency virus, TB: tuberculosis, IQR: interquartile range, MERS-CoV: Middle East respiratory syndrome coronavirus, RT-PCR: reverse transcription-polymerase chain reaction, ALT: alanine aminotransferase, AST: aspartate aminotransferase, PE: pulmonary embolism.