Table 2 Comparison of characteristics between the PCA groups.
Variable | PCA continuation (%), N = 8145 | PCA discontinuation (%), N = 600 | P value |
|---|---|---|---|
Age (SD) | 60.68 (14.28) | 60.35 (14.20) | 0.589 |
Sex, female | 3874 (47.56) | 427 (71.17) | < 0.001 |
LOS after surgery (SD) | 7.36 (9.76) | 6.21 (4.55) | < 0.001 |
Medical history | |||
DM | 719 (8.83) | 49 (8.17) | 0.581 |
HTN | 1231 (15.11) | 84 (14.00) | 0.461 |
CKD | 207 (2.54) | 11 (1.83) | 0.283 |
Heart disease | 253 (3.11) | 22 (3.67) | 0.448 |
Brain disease | 217 (2.66) | 22 (3.67) | 0.146 |
Liver disease | 613 (7.53) | 65 (10.83) | 0.003 |
Anesthesia | 0.143 | ||
General anesthesia | 8116 (99.64) | 600 (100.00) | |
Spinal anesthesia | 29 (0.36) | 0 (0.00) | |
ASA physical status classification | 0.935 | ||
1 | 1434 (17.61) | 105 (17.50) | |
2 | 5199 (63.83) | 380 (63.33) | |
≥ 3 | 1512 (18.56) | 115 (19.17) | |
Laparoscopy | 5400 (66.30) | 422 (70.33) | 0.043 |
Type of surgery | 0.016 | ||
Stomach | 1765 (21.67) | 129 (21.50) | |
Colon | 2246 (27.58) | 145 (24.17) | |
Hepato-pancreatic-biliary | 1137 (13.96) | 107 (17.83) | |
Breast | 951 (11.68) | 51 (8.50) | |
Small bowel | 325 (3.99) | 32 (5.33) | |
Transplantation | 145 (1.78) | 10 (1.67) | |
Vascular | 59 (0.72) | 3 (0.50) | |
Others | 1517 (18.62) | 123 (20.50) | |
PCA type | 0.046 | ||
Opioid included | 7723 (94.82) | 580 (96.67) | |
NSAID only | 422 (5.18) | 20 (3.33) | |
Background infusion | 4093 (50.25) | 289 (48.17) | 0.002 |
Preoperative drug usage | |||
NSAID | 420 (5.16) | 28 (4.67) | 0.599 |
Paracetamol | 558 (6.85) | 30 (5.00) | 0.081 |
Opioid | 614 (7.54) | 26 (4.33) | 0.004 |
