Table 5 Major and minor surgery subgroup analysis
Factors | Major surgery (n = 535) | Minor surgery (n = 565) | ||||
|---|---|---|---|---|---|---|
PPCs (n = 61, 11.4%) | No PPCs (n = 474, 88.6 %) | P value | PPCs (n = 24, 4.2%) | No PPCs (n = 541, 95.8%) | P value | |
Duration of surgery | Â | Â | 0.034 | Â | Â | 0.018 |
 < 2 h | 10 (7.9%) | 116 (92.1%) |  | 14 (3.1%) | 432 (96.9%) |  |
 2–3 h | 9 (7.3%) | 115 (92.7%) |  | 7 (7.4%) | 88 (92.6%) |  |
 > 3 h | 42 (14.7%) | 243 (85.3%) |  | 3 (12.5%) | 21 (87.5%) |  |
Neuromuscular blocking | Â | Â | 0.005 | Â | Â | 0.059 |
 Rocuronium | 10 (27.0%) | 27 (73.0%) |  | 4 (11.1%) | 32 (88.9%) |  |
 Others | 51 (10.2%) | 447 (89.8%) |  | 20 (3.8%) | 509 (96.2%) |  |
Combined GA with epidural anesthesia | Â | Â | 0.838 | Â | Â | 0.459 |
 Yes | 33 (11.1%) | 263 (88.9%) |  | 1 (7.1%) | 13 (92.9 %) |  |
 No | 28 (11.7%) | 211 (88.3%) |  | 23 (4.2%) | 528 (95.8%) |  |
Maximal numerical pain score in 72 h | 6.0 ± 3.2 | 5.4 ± 3.2 | 0.205 | 5.8 ± 3.2 | 5.1 ± 3.2 | 0.331 |
ARISCAT scores | Â | Â | 0.003 | Â | Â | < 0.001 |
 < 26 | 4 (4.3%) | 89 (95.7%) |  | 3 (1.1%) | 282 (98.9%) |  |
 26–44 | 29 (10.2%) | 256 (89.8%) |  | 12 (5.3%) | 216 (94.7%) |  |
 ≥ 45 | 28 (17.8%) | 129 (82.2%) |  | 9 (17.3%) | 43 (82.7%) |  |
Total crystalloid received (mL) | 2200 (1300, 3875) | 1750 (1100, 2600) | 0.009 | 950 (525, 1300) | 450 (300, 650) | < 0.001 |
Estimated blood loss (mL) | 500 (200, 1300) | 300 (100, 600) | < 0.001 | 150 (40, 275) | 10 (5, 30) | < 0.001 |