Table 1. . Characteristics of the entire cohort.
| Variable | Positive for SARS-CoV-2 | Negative for SARS-CoV-2 | |
|---|---|---|---|
| Absolute number (%) | |||
| Male gender | 52 (68.4%) | 29 (69%) | 23 (67.6%) |
| Cough | 35 (46.1%) | 23 (54.8%) | 12 (35.3%) |
| Dyspnea | 57 (75%) | 31 (73.8%) | 26 (76.5%) |
| Median (interquartile range) | |||
| Age (years) | 68.5 (52.7; 78.2) | 68.5 (51; 80) | 67.5 (52.7; 78.2) |
| LDH (IU/l) | 287 (226; 430) | 366 (251; 570) | 258 (211; 341) |
| Creatinine kinasis (IU/l) | 101.5 (45.7; 225) | 98 (38; 224) | 101.5 (58.7; 242.5) |
| C reactive protein (mg/dl) | 5.1 (1.34; 15.4) | 10.7 (3.7; 21.2) | 1.59 (0.67; 6.61) |
| Procalcitonin (ng/ml) | 0.07 (0.03; 0.22) | 0.12 (0.05; 0.46) | 0.04 (0.02; 0.1) |
| D-Dimer (ng/ml) | 514 (288; 2043) | 539 (288; 2191) | 493 (249; 2074) |
| APACHE II score | 11 (7; 15) | 11 (6; 15) | 10.5 (8.7; 16) |
| CKD-EPI (ml/min per 1.73 m2) | 78 (50.7; 94) | 70 (50.7; 84)) | 85.5 (48.7; 101) |
| Fibrinogen (mg/dl) | 395 (277; 544) | 449 (281; 562) | 333 (269; 544) |
| PT (s) | 75 (65; 87) | 74 (65; 81) | 78 (65.7; 95.2) |
| APTTs (s) | 33.3 (30.6; 40) | 32.6 (31.2; 40) | 34.2 (30.1; 41.1) |
| AST (IU/L) | 32 (23; 60) | 44 (28; 65.5) | 26 (18.5; 47) |
| ALT (IU/L) | 24 (15; 50) | 28 (18; 51) | 22 (12; 44) |
| White blood cell (/μl) | 9750 (7500; 13,525) | 8300 (5300; 12,425) | 10,950 (8600; 15,100) |
| Neutrophils (/μl) | 7750 (5450; 10,900) | 6250 (3525; 10,250) | 9100 (6875; 11,600) |
| Lymphocytes (/μl) | 1200 (775; 1800) | 1200 (775; 1558) | 1250 (700; 2250) |
| Monocytes (/μl) | 600 (475; 812) | 600 (400; 762) | 700 (500; 1100) |
| Platelets (×103/μl) | 219 (160; 321) | 199 (146; 321) | 241 (194; 342) |
| LUSS | 12 (4; 16.5) | 14 (10; 20) | 8 (0; 12) |
| Ratio of partial pressure arterial oxygen/fraction of inspired oxygen (mmHg) | 295 (235; 385) | 295 (218; 388) | 297 (255; 386) |
| Respiratory rate (per min) | 21 (18; 25) | 22 (18; 25) | 20 (18; 24) |
| Body temperature (C°) | 37.5 (36; 38) | 37.8 (37.5; 38.1) | 36 (36; 37) |
Data are reported as number of patients (%) or median (IQR), as appropriate. p-values are obtained using simple logistic regression analysis, dichotomizing each quantitative explanatory variable about its median value.
ALT: Alanine transaminase; APACHEII: Acute Physiology and Chronic Health Evaluation II; APTT: activated partial thromboplastin time; AST: Aspartate transaminase; CKD-EPI: Chronic Kidney Disease Epidemiology Collaboration; IQR: Interquartile range; LDH: Lactate dehydrogenase; LUSS: Lung ultrasound score; PT: Prothrombin time.