. 2010 Apr 21;16(15):1890–1895. doi: 10.3748/wjg.v16.i15.1890

Table 1.

Characteristics of patients with branch duct type IPMN

	Total (n = 145)	Resection (n = 33)	Non-resection (n = 112)
Age (mean ± SD) (yr)	66.3 ± 10.2	63.9 ± 10.5	67.0 ± 10.1
Age (mean ± SD) (yr)	66.3 ± 10.2	NS
Male:female	79:66	20:13	59:53
Male:female	79:66	NS
Median diameter of cystic lesion (mm)	20.1 ± 13.0	23.8 ± 11.5	19 ± 13.3
Median diameter of cystic lesion (mm)	20.1 ± 13.0	P < 0.05
Median diameter of MPD (mm)	2.2 ± 2.3	3.6 ± 3.3	1.7 ± 1.8
Median diameter of MPD (mm)	2.2 ± 2.3	P < 0.01
Median diameter of mural nodule (mm)	1.6 ± 5.3	5.8 ± 9.8	0.3 ± 1.6
Median diameter of mural nodule (mm)	1.6 ± 5.3	P < 0.01

P: P value (The presence of a statistically significant difference was denoted by P < 0.05). IPMN: Intraductal papillary mucinous neoplasms of the pancreas; SD: Standard deviation; MPD: Main pancreatic duct; NS: Not significant.