Complications of chronic pancreatitis prior to and following surgical treatment: A proposal for classification

Table 1 Characteristics of the surgically treated patients with chronic pancreatitis

Characteristic	Patients, n = 166
Age in yr	49.8 ± 9.9
Duration of CP before surgery, median (IQR)	1.5 (0.5–3.0)
Male sex, n (%)	140 (84.3)
Etiology of CP, n (%)
Alcoholic	148 (89.2)
Other	18 (10.8)
Predominant indication for surgery, n (%)
Chronic pain	112 (67.5)
Complications of CP1	54 (32.5)
Follow-up (yr), median (IQR)	7.2 (3.8–10.8)
Long-term survival (Kaplan-Meier), (95%CI)
1 yr	100
5 yr	88.2 (83.0–93.5)
10 yr	70.4 (61.7–79.1)
15 yr	41.2 (27.4–55.1)
Median survival in yr	13.9

¹In many cases, patients had also more or less intense abdominal pain.

Data are presented as mean ± SD, unless otherwise specified. CI: Confidence interval; CP: Chronic pancreatitis; IQR: Interquartile range; SD: Standard deviation.