| Before matching | After matching | ||||
---|---|---|---|---|---|---|
ASA PS 2 (n = 82,822) | ASA PS 3 (n = 24,785) | ASD | ASA PS 2 (n = 23,530) | ASA PS 3 (n = 23,530) | ASD | |
Young age (< 50) | 32,061 (38.7) | 2866 (11.6) | 0.85 | 3038 (12.9) | 2862 (12.2) | 0.02 |
Female | 42,983 (51.9) | 11,556 (46.6) | 0.11 | 10,975 (46.6) | 11,078 (47.1) | 0.01 |
Obesity | 8913 (10.8) | 2048 (8.3) | 0.09 | 2028 (8.6) | 1976 (8.4) | 0.01 |
Smoking | 14,761 (17.8) | 3358 (13.5) | 0.12 | 3345 (14.2) | 3264 (13.9) | 0.01 |
Menstruation | 43 (0.1) | 5 (0.0) | 0.02 | 6 (0.0) | 5 (0.0) | 0 |
Levin tube | 1499 (1.8) | 929 (3.7) | 0.1 | 784 (3.3) | 784 (3.3) | 0 |
General anesthesia | 69,513 (83.9) | 22,331 (90.1) | 0.21 | 21,088 (89.6) | 21,078 (89.6) | 0 |
Inhalation anesthetics | 64,464 (77.8) | 20,346 (82.1) | 0.11 | 19,249 (81.8) | 19,253 (81.8) | 0 |
N2O | 7500 (9.1) | 1518 (6.1) | 0.12 | 1498 (6.4) | 1501 (6.4) | 0 |
Remifentanil | 49,275 (59.5) | 18,580 (75.0) | 0.36 | 17,401 (74.0) | 17,349 (73.7) | 0.01 |
Steroid | 3647 (4.4) | 1204 (4.9) | 0.02 | 1090 (4.6) | 1082 (4.6) | 0 |
Neostigmine | 17,197 (20.8) | 9153 (36.9) | 0.33 | 8146 (34.6) | 8159 (34.7) | 0 |
Anticholinergics | 68,716 (83.0) | 21,336 (86.1) | 0.09 | 20,284 (86.2) | 20,186 (85.8) | 0.01 |
Antiemetics | 64,851 (78.3) | 21,357 (86.2) | 0.23 | 20,213 (85.9) | 20,140 (85.6) | 0.01 |
Laparoscopic surgery | 17,392 (21.0) | 4524 (18.3) | 0.07 | 4374 (18.6) | 4350 (18.5) | 0 |
Abdominal surgery | 15,353 (18.5) | 5306 (21.4) | 0.07 | 4868 (20.7) | 4934 (21.0) | 0.01 |
GY surgery | 8713 (10.5) | 746 (3.0) | 0.44 | 794 (3.4) | 743 (3.2) | 0.01 |
EYE surgery | 1072 (1.3) | 275 (1.1) | 0.02 | 262 (1.1) | 274 (1.2) | 0 |
ENT surgery | 8139 (9.8) | 1361 (5.5) | 0.19 | 1368 (5.8) | 1361 (5.8) | 0 |
Head and neck surgery | 4149 (5.0) | 830 (3.3) | 0.09 | 816 (3.5) | 825 (3.5) | 0 |
Anesthesia time (h) | 1.8 (1.1, 2.7) | 2.1 (1.3, 3.1) | 0.25 | 1.9 (1.3, 3.1) | 2.0 (1.3, 3.0) | 0 |
Recovery room time (h) | 0.5 (0.5, 6.0) | 0.6 (0.4, 0.7) | 0.09 | 0.6 (0.5, 0.6) | 0.6 (0.4, 0.7) | 0.01 |
NPO time (h) | 11.2 (8.8, 13.6) | 11.3 (8.8, 13.7) | 0.01 | 11.2 (8.8, 13.7) | 11.2 (8.8, 13.7) | 0 |
Input and output (ml/kg) | 6.0 (3.5, 10.0) | 8.1 (4.4, 14.5) | 0.28 | 7.3 (4.3, 12.4) | 7.7 (4.3, 13.6) | 0.01 |
Opioid in OR and RR (mg/kg) | 4.0 (0.2, 5.8) | 2.8 (0.0, 5.0) | 0.29 | 3.1 (0.0, 5.0) | 2.8 (0.0, 5.0) | 0.03 |
Opioid after RR (mg/kg) | 0.0 (0.0, 94.3) | 36.1 (0.0, 175.8) | 0.22 | 0.0 (0.0, 165.0) | 32.1 (0.0, 166.7) | 0.01 |