Patient demographics
| Patient demographics n (%)* | |||
| Variable | Postsurgery complications | Total | |
| No (n=1021) | Yes (n=72) | ||
| Sex | |||
| Male | 651 (64) | 47 (65) | 698 (64) |
| Female | 370 (36) | 25 (35) | 395 (36) |
| Age (years) | 41 (21); | 50 (20); | 42 (21); |
| 40 (26 to 57) | 49 (38 to 64) | 41 (27 to 58) | |
| Comorbidities | |||
| Asthma | 61 (6) | 5 (7) | 66 (6) |
| Hypertension | 115 (11) | 12 (17) | 127 (12) |
| Ischaemic heart disease | 25 (2) | 7 (10) | 32 (3) |
| Diabetes | 42 (4) | 7 (10) | 49 (4) |
| Smoking | 137 (13) | 14 (19) | 151 (14) |
| Stroke/TIA | 16 (2) | 2 (3) | 18 (2) |
| COPD | 18 (2) | 2 (3) | 20 (2) |
| Chronic kidney disease | 13 (1) | 1 (1) | 14 (1) |
| COVID-19 status | |||
| No suspicion | 997 (98) | 65 (90) | 1062 (97) |
| Swab negative | 9 (1) | 3 (4) | 12 (1) |
| CXR/Clinical presurgery | 12 (1) | 3 (4) | 15 (1) |
| Swab/CT positive (presurgery/postsurgery) | 3 (0) | 1 (<1) | 4 (<1) |
Mean (SD), median (IQR) is given for continuous variables instead of n (%), n=1093.
COPD, chronic obstructive pulmonary disease; CXR, chest X-ray; TIA, transient ischaemic attack.