Critical values of monitoring indexes for perioperative major adverse cardiac events in elderly patients with biliary diseases

Table 1 Comparative analysis of clinical data between major adverse cardiac events and non-major adverse cardiac events group in elderly patients with biliary diseases (mean ± SD)

	MACE (n = 9)	Non-MACE (n = 199)	t/Z/χ2 value	P/F value
Age (yr)	76.6 ± 8.6	72.1 ± 8.5	1.559	0.121
Gender				0.738
Men	5	93
Women	4	106
Disease type				1.000
A	7	145
B	8	174
C	0	15
Operation method				0.585
Laparoscopy	8	181
Laparotomy	1	18
Intraoperative blood loss (mL)	56.7 ± 60.2	41.5 ± 81.9	0.547	0.585
Operation time (min)	132.0 ± 78.3	94.5 ± 57.9	1.872	0.063
Postoperative hospital stay (d)	16.0 ± 9.8	9.4 ± 6.3	2.982	0.003
Postoperative complicationsa			-2.828	0.005
I	0	26
II	1	15
III	1	3
IV	5	32
V	2	0
Treatment effect				0.002
Cure	7	199
Death	2	0

^aClavien-Dindo classification of postoperative complications. A: Cholelithiasis; B: Biliary inflammation; C: Biliary tumor; MACE: Major adverse cardiac events.