Table 1. Patient characteristics (n = 58).

Gender: male/female	31/27
Mean age: years (range)	70.6 (43 – 88)
Locations: C/A/T/D/S/R	7/9/14/2/14/12
Pathological findings:
Adenoma/adenocarcinoma	30/28
Histologic depth M/SM-s/SM-d/MP	49/8/0/1
Tumor size: mm (range)	32.5 (10 – 75)
LST-G-H/G-M/NG-F/NG-PD	6/26/8/18
Fibrosis diagnosed by EUS (not evaluable/F0/F1/F2)	22/24/5/7
Fibrosis diagnosed by ESD (F0/F1/F2)	30/19/9

Values are means ± SD.

C, cecum; A, ascending colon; T, transverse colon; D, descending colon; S, sigmoid colon; R, rectum; M: mucosa; SM-s: slight invasion of the submucosa (submucosal invasion < 1000 μm); SM-d: deep invasion of the submucosa (submucosal invasion > 1000 μm); MP: muscularis propria. LST-G-H, laterally spreading tumor, granular, homogenous-type; LST-G-M, laterally spreading tumor, granular, nodular-mixed-type; LST-NG-F, laterally spreading tumor, non-granular, flat-elevated-type; LST-NG-PD, laterally spreading tumor, non-granular, pseudo-depressed-type.