TABLE 3.
The influence of Bayesian indicator nodes for the postoperative length of stay.
| Indicator node | Postoperative length of stay−0*−(957 cases) | Postoperative length of stay −1*−(558 cases) | P | |
| Whether to use blood transfusion in 6–9 g hemoglobin | 0 | 69 (7.21%) | 45 (8.06%) | 0.255389 |
| 1 | 15 (1.57%) | 15 (2.69%) | ||
| 2 | 873 (91.22%) | 498 (89.25%) | ||
| Urine volume _ length of operation _100 | Low | 315 (32.92%) | 252 (45.16%) | 0.000002 |
| High | 642 (67.08%) | 306 (54.84%) | ||
| Whether to use the dexmedetomidine | N | 216 (22.57%) | 105 (18.82%) | 0.084633 |
| Y | 741 (77.43%) | 453 (81.18%) | ||
| Whether to use dexamethasone | N | 696 (72.73%) | 417 (74.73%) | 0.394152 |
| Y | 261 (27.27%) | 141 (25.27%) | ||
| Whether to use a muscle relaxant antagonist | N | 249 (26.02%) | 150 (26.88%) | 0.713013 |
| Y | 708 (73.98%) | 408 (73.12%) | ||
| Crystalloid solution: colloid solution ratio −2:1 | Low | 381 (39.81%)‡ | 168 (30.11%)‡ | 0.000289 |
| High | 171 (17.87%)§ | 132 (23.66%)§ | ||
| Less | 405 (42.32%)§ | 258 (46.24%)§ | ||
| Intraoperative ETCO2 | 0 | 591 (61.76%)‡ | 294 (52.69%)‡ | 0.000157 |
| 1 | 366 (38.24%)§ | 261 (46.77%)§ | ||
| 2 | 0 (0%)§ | 3 (0.54%)§ | ||
| Intraoperative use of sevoflurane | N | 750 (78.37%) | 444 (79.57%) | 0.581417 |
| Y | 207 (21.63%) | 114 (20.43%) | ||
| Intraoperative use of propofol | N | 90 (9.4%) | 39 (6.99%) | 0.104249 |
| Y | 867 (90.6%) | 519 (93.01%) | ||
| Intraoperative mean blood pressure | Low | 96 (10.03%)‡ | 93 (16.67%)‡ | 0.000322 |
| Normal | 816 (85.27%)§ | 432 (77.42%)§ | ||
| High | 45 (4.7%)‡,§ | 33 (5.91%)‡,§ | ||
| Intraoperative systolic blood pressure | Low | 171 (17.87%)‡ | 141 (25.27%)‡ | 0.002418 |
| Normal | 747 (78.06%)§ | 399 (71.51%)§ | ||
| High | 39 (4.08%)‡,§ | 18 (3.23%)‡,§ | ||
| Intraoperative use of myocardial nutritional drugs | N | 852 (89.03%) | 480 (86.02%) | 0.083242 |
| Y | 105 (10.97%) | 78 (13.98%) | ||
| Intraoperative use of hemostatic | N | 597 (62.38%) | 351 (62.9%) | 0.839885 |
| Y | 360 (37.62%) | 207 (37.1%) | ||
| Intraoperative diastolic blood pressure | Low | 156 (16.3%)‡ | 123 (22.04%)‡ | 0.001814 |
| Normal | 756 (79%)§ | 396 (70.97%)§ | ||
| High | 45 (4.7%)‡,§ | 39 (6.99%)‡,§ | ||
| Postoperative compound nerve block analgesia | N | 558 (58.31%) | 285 (51.08%) | 0.006276 |
| Y | 399 (41.69%) | 273 (48.92%) | ||
| Whether to use opioids as dominance in postoperative analgesia (fentanyl) | N | 933 (97.49%) | 525 (94.09%) | 0.000778 |
| Y | 24 (2.51%) | 33 (5.91%) | ||
| Whether to use non-steroidal drugs in postoperative analgesia | N | 483 (50.47%) | 309 (55.38%) | 0.065167 |
| Y | 474 (49.53%) | 249 (44.62%) | ||
| Positive balance | 0 | 216 (22.57%)‡ | 81 (14.52%)‡ | 0.000437 |
| 1 | 570 (59.56%)§ | 363 (65.05%)§ | ||
| 2 | 156 (16.3%)§ | 96 (17.2%)§ | ||
| 3 | 15 (1.57%)§ | 18 (3.23%)§ | ||
‡, § Each subscript letter represents a subset of the indicator class, with no significant difference between the horizontal columns at the 0.05 level.
*Postoperative length of stay-state-0 (<4.546 d). Postoperative length of stay-state-1 (≥ 4.546 d).