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. 2021 Jan 1;9(1):E58–E65. doi: 10.1055/a-1293-7487

Table 1. Clinicopathological characteristics of all 99 superficial non-ampullaryduodenal epithelial tumors.

Non-biopsy group, n = 32 Biopsy group, n = 67 P value
Sex, n (%)

  • Male

 29 90.6 47 70.1 0.02

  • Female

 3 9.4 20 29.9
Age, mean ± SD, years 64 ± 9 64 ± 10 0.75
Lesion size, mean ± SD, mm 11 ± 7 12 ± 7 0.2
Macroscopic type, n (%)

  • 0-I

 2 6.3 11 16.4 0.08

  • 0-IIa

 17 53.1 42 62.7

  • 0-IIc, 0-IIa + IIc

 13 40.6 14 20.9
Location, n (%)

  • 1st portion

 2 6.3 13 19.4 0.11

  • 2nd portion

  • Oral-Vater

 9 28.1 25 37.3

  • Anal-Vater

 21 65.6 28 41.8

  • 3nd portion

 0 0 1 1.5
Histological grade from ER specimens

  • VCL category 3

 10 31.3 21 31.3 0.99

  • VCL category 4/5

 22 68.8 46 68.7

SD, standard deviation; ER, endoscopic resection; VCL, Vienna classification.