Table 1.
Characteristics of the inflammatory cohorts
| Basic characteristics | Cardiac surgery | Cesarean section | Colectomy | Hip arthroplasty | Hysterectomy | Whipple prodecure | Limb amputation | COVID-19 | C. difficile colitis | Sepsis | Myocardial infarction | Stroke |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. of patients | 4693 | 1273 | 1584 | 3249 | 1049 | 912 | 753 | 1396 | 383 | 4730 | 6240 | 2494 |
| Age: mean (SD) yrs | 63.9 (13) | 33.7 (5.4) | 61.8 (15.2) | 71 (12.4) | 60.3 (12.4) | 67.5 (11.4) | 63.2 (14) | 61.8 (17.5) | 69 (17.1) | 66.8 (16.8) | 70 (13.3) | 70.6 (14.6) |
| Gender: No. male (%) | 3346 (71.3) | 0 (0) | 778 (49.1) | 1177 (36.2) | 0 (0) | 477 (52.3) | 502 (66.7) | 813 (58.2) | 216 (56.4) | 2669 (56.4) | 3963 (63.5) | 1311 (52.6) |
| Pre-operative (or at admission) tests | ||||||||||||
| White blood cell count: mean (SD) 103/µL | 7.9 (3.1) | 12 (4.7) | 10.8 (6.9) | 9 (6.3) | 7.8 (4.7) | 7.3 (4.2) | 11.7 (6) | 8 (4.5) | 14.6 (14.8) | 14.2 (10.3) | 10.5 (7.1) | 10.1 (6.3) |
| Platelet count: mean (SD) 103/µL | 217.9 (71.7) | 204 (91) | 275 (143) | 230 (105) | 280 (141) | 232 (109) | 308 (149) | 218 (100) | 278 (160) | 232.3 (132.2) | 235 (92) | 239 (102) |
| Red cell distribution width: mean (SD) % | 14.2 (2.2) | 14.3 (1.7) | 15.5 (2.8) | 14.3 (1.9) | 16.2 (3.4) | 14.9 (2.3) | 15.9 (2.5) | 14.1 (2.2) | 15.8 (2.9) | 15.6 (2.6) | 14.3 (2) | 14.5 (2.3) |
| Hematocrit: mean (SD) % | 38.1 (6.1) | 34.3 (4.3) | 33.8 (6.9) | 34.6 (5.3) | 33.7 (5.7) | 34.9 (5.5) | 29.1 (4.9) | 38.8 (6.4) | 34.7 (6.2) | 34.7 (7.0) | 38.2 (6.8) | 37.5 (6.9) |
| Clinical outcomes | ||||||||||||
| Inpatient stay: mean (SD) days | 8.8 (10.4) | 3.5 (2.8) | 8.2 (8.9) | 4 (3.4) | 4.7 (3.8) | 7.2 (7.3) | 10.3 (11.3) | 11.7 (12.9) | 10.5 (12.2) | 10.2 (10.5) | 8.7 (9.3) | 10.4 (11.4) |
| 30-day mortality: No. (%) | 107 (2.3) | 2 (0.2%) | 122 (7.7%) | 48 (1.5%) | 15 (1.4%) | 24 (2.6%) | 80 (10.6%) | 189 (13.5%) | 45 (11.7%) | 508 (10.7%) | 579 (9.3%) | 320 (12.8%) |
SD standard deviation.