Table 2.

Adverse events risk within 30 days of endoscopic ultrasound, relation to the procedure, and outcomes

Variable	Trainee Absent (n=1206) N (%)*	Trainee Present (n=451) N (%)*	P value
Emergency room visit or hospitalization	64 (5)	39 (9)	0.01
Relation to EUS procedure			0.69
Definitely-related	18 (2)	14 (3)
Possibly-related	16 (1)	8 (2)
Not-related	30 (2)	17 (4)
Adverse event details†
Number of adverse events	34 (3)	22 (5)	0.04
Number requiring hospitalization	18 (2)	9 (2)	0.47
Median number of days in hospital (IQR)	6 (3–15)	4 (2–13)	0.23
Number requiring ICU care	3 (0.2)	4 (1)	0.09
Management†
Antibiotics	11 (1)	5 (1)	0.78
Blood transfusion (units)	1 (0.1)	2 (0.4)	0.18
Endoscopic management	1 (0.1)	1 (0.2)	0.47
Surgical management	2 (0.2)	2 (0.4)	0.30
Risk of adverse event†
Infection	3 (0.3)	3 (1)
Gastrointestinal bleeding	2 (0.2)	1 (0.2)	1.00
Pancreatitis	6 (1)	3 (1)	0.71
Perforation	0	2 (0.4)	0.64
Pulmonary embolism	1 (0.2)	0	1.00

^*Unless otherwise indicated.

†Cases that were definitely- and possibly-related to the EUS procedure were included.

ICU: intensive care unit