| Before matching | After matching | ||||
---|---|---|---|---|---|---|
ASA PS 1 (n = 55,893) | ASA PS 3 (n = 24,785) | ASD | ASA PS 1 (n = 13,287) | ASA PS 3 (n = 13,287) | ASD | |
Young age (< 50) | 41,342 (74.0) | 2866 (11.6) | 1.95 | 2834 (21.3) | 2770 (20.8) | 0.02 |
Female | 28,933 (51.8) | 11,556 (46.6) | 0.1 | 6450 (48.5) | 6448 (48.5) | 0 |
Obesity | 2462 (4.4) | 2048 (8.3) | 0.14 | 781 (5.9) | 861 (6.5) | 0.02 |
Smoking | 11,801 (21.1) | 3358 (13.5) | 0.22 | 2253 (17.0) | 2153 (16.2) | 0.02 |
Menstruation | 93 (0.2) | 5 (0.0) | 0.1 | 7 (0.1) | 5 (0.0) | 0.01 |
Levin tube | 243 (0.4) | 929 (3.7) | 0.17 | 165 (1.2) | 218 (1.6) | 0.02 |
General anesthesia | 46,047 (82.4) | 22,331 (90.1) | 0.26 | 11,055 (83.2) | 11,065 (83.3) | 0 |
Inhalation anesthetics | 42,782 (76.5) | 20,346 (82.1) | 0.14 | 9985 (75.1) | 9995 (75.2) | 0 |
N2O | 5947 (10.6) | 1518 (6.1) | 0.19 | 1294 (9.7) | 1162 (8.7) | 0.04 |
Remifentanil | 24,888 (44.5) | 18,580 (75.0) | 0.7 | 7766 (58.4) | 8007 (60.3) | 0.04 |
Steroid | 2285 (4.1) | 1204 (4.9) | 0.04 | 545 (4.1) | 557 (4.2) | 0 |
Neostigmine | 7546 (13.5) | 9153 (36.9) | 0.49 | 2743 (20.6) | 2912 (21.9) | 0.03 |
Anticholinergics | 45,809 (82.0) | 21,336 (86.1) | 0.12 | 10,837 (81.6) | 10,774 (81.1) | 0.01 |
Antiemetics | 41,048 (73.4) | 21,357 (86.2) | 0.37 | 10,834 (81.5) | 10,868 (81.8) | 0.01 |
Laparoscopic surgery | 14,841 (26.6) | 4524 (18.3) | 0.21 | 2395 (18.0) | 2421 (18.2) | 0.01 |
Abdominal surgery | 11,133 (19.9) | 5306 (21.4) | 0.04 | 2390 (18.0) | 2512 (18.9) | 0.02 |
GY surgery | 7756 (13.9) | 746 (3.0) | 0.64 | 736 (5.5) | 648 (4.9) | 0.04 |
EYE surgery | 438 (0.8) | 275 (1.1) | 0.03 | 178 (1.3) | 167 (1.3) | 0.01 |
ENT surgery | 7819 (14.0) | 1361 (5.5) | 0.37 | 1278 (9.6) | 1198 (9.0) | 0.03 |
Head and neck surgery | 2553 (4.6) | 830 (3.3) | 0.07 | 573 (4.3) | 537 (4.0) | 0.02 |
Anesthesia time (h) | 1.4 (1.0, 2.2) | 2.1 (1.3, 3.1) | 0.47 | 1.8 (1.2, 2.7) | 1.7 (1.1, 2.6) | 0.03 |
Recovery room time (h) | 0.5 (0.4, 0.6) | 0.6 (0.4, 0.7) | 0.01 | 0.6 (0.4, 0.7) | 0.5 (0.4, 0.6) | 0 |
NPO time (h) | 11.5 (9.2, 14.0) | 11.3 (8.8, 13.7) | 0.09 | 11.4 (8.9, 13.8) | 11.2 (8.9, 13.8) | 0 |
Input and output (ml/kg) | 5.2 (3.2, 8.2) | 8.1 (4.4, 14.5) | 0.42 | 6.3 (3.5, 10.8) | 6.2 (3.8, 9.8) | 0.04 |
Opioid in OR and RR (mg/kg) | 5.0 (0.3, 7.5) | 2.8 (0.0, 5.0) | 0.4 | 2.9 (0.0, 5.3) | 3.1 (0.0, 5.5) | 0.03 |
Opioid after RR (mg/kg) | 0.0 (0, 47.3) | 36.1 (0.0, 175.8) | 0.37 | 0.0 (0.0, 123.0) | 0.0 (0.0, 97.0) | 0.03 |