| pre-pandemic | 1st wave | after 1st wave | 2nd wave | after 2nd wave |
---|---|---|---|---|---|
time period | 6/2014–3/2020 | 4/2020–5/2020 | 6/2020–9/2020 | 10/2020–5/2021 | 6/2021–10/2021 |
number of cases | 107,468 | 2251 | 6504 | 12,112 | 8042 |
mortality | 883 (0.8) | 22 (1.0) | 61 (0.9) | 125 (1.0) | 65 (0.8) |
age—years | 56 [38, 70] | 58 [40, 72] | 57 [39, 71] | 57 [39, 72] | 57 [38, 72] |
female sex | 49,282 (45.9) | 1065 (47.3) | 2896 (44.5) | 5815 (48.0) | 3789 (47.1) |
BMI missing | 34,276 (31.9) | 484 (21.5) | 1114 (17.1) | 2061 (17.0) | 1329 (16.5) |
BMI – kg/m2 | 25.2 [22.5, 28.6] | 24.9 [22.2, 28.4] | 25.4 [22.6, 28.7] | 25.3 [22.6, 28.7] | 25.3 [22.5, 28.7] |
ASA missing | 31,407 (29.2) | 440 (19.5) | 1058 (16.3) | 1917 (15.8) | 1212 (15.1) |
ASA | |||||
 1 | 21,204 (27.9) | 415 (22.9) | 1392 (25.6) | 2498 (24.5) | 1637 (24.0) |
 2 | 38,999 (51.3) | 889 (49.1) | 2667 (49.0) | 5021 (49.2) | 3417 (50.0) |
 3 | 15,113 (19.9) | 474 (26.2) | 1317 (24.2) | 2561 (25.1) | 1700 (24.9) |
 4 | 695 (0.9) | 33 (1.8) | 70 (1.3) | 109 (1.1) | 76 (1.1) |
 5 | 50 (0.1) | 0 | 0 | 6 (0.1) | 0 |
 Mallampati available | 42,492 (39.5) | 747 (33.2) | 1634 (25.1) | 2804 (23.2) | 1624 (20.2) |
Mallampati | |||||
 I | 27,210 (41.9) | 677 (45.0) | 2358 (48.4) | 4243 (45.6) | 2906 (45.3) |
 II | 28,633 (44.1) | 603 (40.1) | 1893 (38.9) | 3824 (41.1) | 2666 (41.5) |
 III | 7242 (11.1) | 177 (11.8) | 495 (10.2) | 1043 (11.2) | 720 (11.2) |
 IV | 1891 (2.9) | 47 (3.1) | 124 (2.5) | 198 (2.1) | 126 (2.0) |
 count of preop consults | 2 [1, 3] | 3 [2, 4.25] | 3 [2, 4] | 3 [2, 5] | 3 [2, 5] |
department | |||||
 bone&joint | 19,153 (17.8) | 334 (14.8) | 1145 (17.6) | 2037 (16.8) | 1433 (17.8) |
 gyn/obstetric | 10,692 (10.0) | 293 (13.0) | 647 (10.0) | 1351 (11.2) | 803 (10.0) |
 head&neck | 25,171 (23.4) | 402 (17.9) | 1378 (21.2) | 2406 (19.9) | 1647 (20.5) |
 neurosurgery | 10,259 (9.6) | 315 (14.0) | 720 (11.1) | 1353 (11.2) | 895 (11.1) |
 outpatient | 9582 (8.9) | 201 (8.9) | 707 (10.9) | 1347 (11.1) | 880 (10.9) |
 surgery | 20,397 (19.0) | 421 (18.7) | 1104 (17.0) | 2087 (17.2) | 1382 (17.2) |
 urology | 12,160 (11.3) | 285 (12.7) | 801 (12.3) | 1530 (12.6) | 1002 (12.5) |
admission | |||||
 from external hospital | 2269 (2.1) | 54 (2.4) | 119 (1.8) | 233 (1.9) | 142 (1.8) |
 child birth | 4236 (4.0) | 103 (4.6) | 258 (4.0) | 496 (4.1) | 327 (4.1) |
 elective case | 77,843 (72.6) | 1491 (66.8) | 4704 (72.5) | 8680 (71.9) | 5689 (70.9) |
 emergency | 19,342 (18.0) | 509 (22.8) | 1190 (18.3) | 2306 (19.1) | 1543 (19.2) |
 new-born | 5 (0.0) | 0 | 0 | 0 | 0 |
 other | 661 (0.6) | 21 (0.9) | 61 (0.9) | 151 (1.3) | 166 (2.1) |
 polyclinic | 2853 (2.7) | 54 (2.4) | 154 (2.4) | 213 (1.8) | 159 (2.0) |
 out-of-hour | 7810 (7.3) | 204 (9.1) | 480 (7.4) | 887 (7.3) | 577 (7.2) |
 weekend | 4658 (4.3) | 115 (5.1) | 242 (3.7) | 516 (4.3) | 323 (4.0) |
 PRCs ordered | 29,212 (34.3) | 849 (41.7) | 2163 (36.8) | 4023 (36.5) | 2292 (31.0) |
 if yes: number | 4 [2, 4] | 4 [2, 4] | 4 [2, 4] | 4 [2, 4] | 2 [2, 4] |
 FFPs ordered | 22,724 (26.7) | 621 (30.5) | 1590 (27.0) | 2676 (24.2) | 1301 (17.6) |
 if yes: number | 4 [2, 4] | 4 [2, 4] | 4 [2, 4] | 4 [2, 4] | 4 [2, 4] |
 PCC ordered | 441 (0.5) | 12 (0.6) | 40 (0.7) | 91 (0.8) | 47 (0.6) |
 if yes: number | 4 [3, 4] | 4 [4, 6] | 4 [4, 6] | 4 [3, 6] | 4 [2, 4] |
 CRP missing | 49,466 (46.0) | 879 (39.0) | 2419 (37.2) | 4579 (37.8) | 2937 (36.5) |
 CRP—mg/L | 3.0 [1.0, 10.0] | 3.0 [1.0, 16.0] | 3.0 [1.0, 10.0] | 3.0 [1.0, 10.0] | 3.0 [1.0, 10.0] |
 leukocytes missing | 25,031 (23.3) | 267 (11.9) | 734 (11.3) | 1312 (10.8) | 758 (9.4) |
 leukocytes – 106/µL | 7.3 [5.9, 9.1] | 7.2 [5.8, 9.2] | 7.2 [5.8, 9.0] | 7.2 [5.8, 9.1] | 7.2 [5.8, 9.1] |
 albumin missing | 98,097 (91.3) | 1976 (87.8) | 5804 (89.2) | 10,726 (88.6) | 7168 (89.1) |
 albumin—g/L | 44 [39, 46] | 43 [38, 47] | 44 [39, 47] | 43 [37, 46] | 43 [38, 46] |
 Quick missing | 25,443 (23.7) | 283 (12.6) | 772 (11.9) | 1372 (11.3) | 794 (9.9) |
 Quick value—% | 103 [95, 112] | 116 [107, 120] | 108 [99, 115] | 107 [98, 114] | 106 [98, 113] |