Table 1.
COVID-19 patients characteristics
| Variables | COVID-19 patients (n = 44) |
Symptomatic (n = 26) |
Asymptomatic (n = 18) |
|---|---|---|---|
| Demographics | |||
| Age (years) | 59 (22) | 61 (24) | 58 (20) |
| Sex (female) | 24 (55%) | 13 (50%) | 11 (61%) |
| Comorbidities | |||
| BMI (kg·m−2)a | 30 (7) | 29 (5) | 32 (9) |
| Diabetes | 11 (25%) | 7 (27%) | 4 (22%) |
| Hypertension | 23 (52%) | 13 (50%) | 10 (56%) |
| COVID-19 symptoms and treatment at surgery | |||
| Positive test at surgery | 42 (96%) | 24 (92%) | 18 (100%) |
| Days since positive test (days) | 5 [2, 19] | 8 [2, 20] | 3 [1, 16] |
| Cough | 17 (39%) | 17 (65%) | 0 (0%) |
| Dyspnea | 13 (30%) | 13 (50%) | 0 (0%) |
| Respiratory distress | 9 (21%) | 9 (35%) | 0 (0%) |
| Fever | 17 (39%) | 17 (65%) | 0 (0%) |
| Antibiotics | 24 (55%) | 19 (73%) | 5 (28%) |
| Steroids | 11 (25%) | 9 (35%) | 2 (11%) |
| Preoperative respiratory and organ dysfunction | |||
| Oxygen | 12 (27%) | 11 (42%) | 1 (6%) |
| Mechanical ventilation | 8 (18%) | 8 (31%) | 0 (0%) |
| SOFA scoreb | 0 [0, 3] | 1 [0, 6] | 0 [0, 1] |
| Surgical characteristics | |||
| General anesthesia | 28 (64%) | 18 (69%) | 10 (56%) |
| Urgencyc | 31 (71%) | 19 (73%) | 12 (67%) |
| Major surgery | 16 (36%) | 9 (35%) | 7 (39%) |
| Blood lossd (mL) | 175 [75, 500] | 150 [100, 600] | 250 [50, 300] |
Data is reported as mean (SD), as median [q1, q3] or as number of events (proportion in %)
N.B. SOFA is not reported because of excessive missing values
Abbreviations: BMI Body mass index, SOFA Sequential Organ Function Assessment score
a 22 missing values (12 in symptomatic and 8 in asymptomatic patients)
b When no bilirubin was measured preoperatively, we imputated a value of 0 for the liver component of the SOFA score. 1 missing value in each subgroup
c Urgency was defined by the need to undergo a surgery within 24 h
d 12 missing values (8 in symptomatic and 4 in asymptomatic patients)