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. 2020 Jul 21;8(8):E1021–E1030. doi: 10.1055/a-1190-7880

Table 1. Characteristics of patients and lesions.

Pocket-creation method Conventional method P value
Patients/lesions 40/40 49/50 0.61 1

  • Male

 25 (63 %) 28 (57 %)

  • Female

 15 (38 %) 21 (43 %)
Median age 64.5 67 0.27 2

  • (range, years)

 (42–90) (42–88)
Location 0.69 1

  • Proximal colon

 15 (38 %) 18 (36 %)

  • Distal colon

  6 (15 %) 11 (22 %)

  • Rectum

 19 (48 %) 21 (42 %)
Morphology 0.47 1

  • Semipedunculated type

 10 (25 %) 16 (32 %)

  • Sessile type

 30 (75 %) 34 (68 %)
Median tumor size 30.5 30.5 0.77 2

  • (range, mm)

 (20–57) (20–90)
Endoscope  > 0.99 3

  • Short-type colonoscope 4

37 (93 %) 46 (93 %)

  • Double-balloon endoscope 5

 3 (8 %)  4 (7 %)
Muscle retracting sign 0.76 3

  • Positive

  6 (15 %)  6 (12 %)

  • Negative

 34 (85 %) 44 (88 %)
Histological type 0.10 3

  • Adenoma

 11 (28 %) 15 (30 %)

  • Intramucosal Carcinoma

 24 (60 %) 20 (40 %)

  • Slightly invasive submucosal carcinoma < 1000 μm

  1 (3 %)  8 (16 %)

  • Deeply invasive submucosal carcinoma ≥ 1000 μm

  4 (10 %)  7 (14 %)
1

χ2 test

2

Mann–Whitney U test

3

Fisher's exact test

4

EC-580RD/M (Fujifilm, Tokyo, Japan)

5

EC-450BI5 with TS-13101 or BI-530B with TS-13101 (Fujifilm)