Table 5. Drain amylase level in grade B postoperative pancreatic fistula patients.

Drain amylase level	B-antibiotics (n = 31)	B-intervention (n = 54)	P-value
Drain amylase level on POD 3, U/l	2 234 (405–126 400)	356 (24–27 475)	< 0.001
> 3 times ULN amylase on POD 3, Yes/ No	31 (100%) / 0 (%)	25 (46.3%) / 29 (53.7%)	< 0.001
Drainage day*, POD	-	13 (3–34)
Drain amylase level on drainage day*, U/L	-	24,794 (15–183,560)

Data are expressed as number (percentage), median (range).

POD: post operative day, ULN: upper limit of normal.

* Four patients without PFC drainage were excluded.