Table 5.

Relationship between risk group established by the prediction model and complications.

Complications	High-risk group (n = 41)	Middle-risk group (n = 32)	Low-risk group (n = 75)	P value
All complications				<0.001
Yes (n = 83)	37	16	30
No (n = 65)	4	16	45
CD Grades I-II				<0.001
Yes (n = 63)	28	13	22
No (n = 85)	13	19	53
CD Grades III-V
Yes (n = 20)	9	3	8	0.175
No (n = 128)	32	29	67

Data are presented as n (%). CD, Clavien–Dindo classification.