Prediction and stratification for the surgical adverse events after minimally invasive esophagectomy: A two-center retrospective study

Table 2 Compared different short-term outcomes between subgroups of train set, n (%)

	Train set (n = 549)
	Non-SAE (n = 493)	SAE (n = 56)	P value
Pulmonary infection (+)	126 (25.6)	22 (39.3)	0.028
Blood transfusion (+)	0 (0.0)	12 (21.4)	< 0.001
ICU management (+)	0 (0.0)	37 (66.1)	< 0.001
Anastomotic leak (+)	31 (6.3)	45 (80.4)	< 0.001
Re-operation (+)	0 (0.0)	3 (5.4)	< 0.0012
Duration of chest tube drainage, medium (IQR)	8 (4)	13 (15)	< 0.0011
ICU stay time, medium (IQR)	0 (0)	7 (9)	< 0.0011
Death within 30-day	0 (0.0)	0 (0.0)	/

¹Compared using Kruskal-Wallis rank-sum test.

²Adjusted P values.

IQR: Interquartile range; ICU: Intensive care unit; SAE: Surgical adverse event.