Risk factors and predictive modeling of early postoperative liver function abnormalities

Table 3 Intraoperative data analysis for the normal and abnormal groups

Parameter	Normal group (n = 3553)	Abnormal group (n = 167)	Statistic	P value
Head and neck surgery	14 (0.39)	3 (1.80)	-	0.04
Operation on the spine and limbs	643 (18.10)	42 (25.15)	χ² = 5.28	0.02
Operation on the esophagus, gastrointestinal tract, pancreas, spleen, and appendix	907 (25.53)	88 (52.69)	χ² = 60.08	< .01
Operation on the kidneys, bladder, and ureter	218 (6.14)	8 (4.79)	χ² = 0.51	0.48
Operation on the uterus, ovaries, and fallopian tube	1771 (49.85)	26 (15.57)	χ² = 75.04	< 0.01
Time of operation	239.00 (205.00, 288.00)	290.00 (232.00, 359.00)	Z = -7.16	< 0.01
Anesthesia time, minute	295.00 (257.00, 346.00)	352.00 (290.00, 417.00)	Z = -7.50	< 0.01
Length of hospital stay, day	13.00 (9.00, 18.00)	16.00 (11.00, 22.00)	Z = -5.24	< 0.01
ASA rating
I	169 (4.76)	5 (2.99)	χ² = 1.11	0.29
II	2709 (76.25)	115 (68.86)	χ² = 4.76	0.03
III	671 (18.89)	45 (26.95)	χ² = 6.67	< 0.01
IV	4 (0.11)	2 (1.20)	-	0.03
Sufentanil, μg	10.00 (5.00, 15.00)	10.00 (5.00, 15.00)	Z = -1.31	0.19
Whether to pump remifentanil	3131 (88.12)	164 (98.20)	χ² = 16.02	< 0.01
Rocuronium, mg	2.49 ± 10.76	2.94 ± 10.66	t = -0.53	0.59
Etomidate, mg	6.88 ± 16.13	8.70 ± 19.38	t = -1.41	0.16
Whether to pump propofol	2681 (75.46)	119 (71.26)	χ² = 1.51	0.22
Dosage of intravenous propofol, mg	35.40 ± 153.54	30.48 ± 107.01	t = 0.41	0.68
Dexmedetomidine, μg	4.09 ± 12.96	3.92 ± 13.37	t = 0.17	0.87
Sevoflurane, mL	60.00 (40.00, 100.00)	80.00 (50.00, 120.00)	Z = -4.29	< 0.01

ASA: American Society of Anesthesiologists.