Effects of early diet resumption on the incidence of complications following polypectomy: A randomized controlled trial

Table 1 Characteristics of patients who underwent polypectomy in experimental group and control group, n (%)

Characteristic	Experimental group (n = 751)	Control group (n = 751)	P value
Age (year) (mean ± SD)	57.6 ± 10.7	57.2 ± 11.3	0.387
Sex			0.122
Male	455 (60.6)	484 (64.4)
Female	296 (39.4)	267 (35.6)
Smoking history	205 (27.3)	204 (27.2)	0.954
Drinking history	111 (14.8)	133 (17.7)	0.124
Hypertension	267 (35.6)	283 (37.7)	0.391
Diabetes	89 (11.9)	75 (10.0)	0.247
Cardio-cerebral vascular disease	59 (7.9)	58 (7.7)	0.923
Body mass index (kg/m2) (mean ± SD)	24.0 ± 3.1	24.0 ± 3.1	0.708
Polyp number [median (P25, P75)]	2 (1, 4)	2 (1, 4)	0.910
Polyp size (cm) [median (P25, P75)]	0.9 (0.8, 1.0)	1.0 (0.8, 1.1)	0.307
Pedunculated polyp	197 (26.2)	199 (26.5)	0.907
Polyp location			0.332
Right colon (caecum, ascending colon)	157 (20.9)	168 (22.4)
Transverse colon (liver flexure, transverse colon, spleen flexure)	234 (31.2)	208 (27.7)
Left colon (descending colon, sigmoid colon, rectum)	360 (47.9)	375 (49.9)
Duration of polypectomy (minutes) [median (P25, P75)]	21 (15, 30)	21 (16, 31)	0.131
Polypectomy modality			0.688
Cold forceps polypectomy and cold snare polypectomy	86 (11.5)	87 (11.6)
Hot snare polypectomy and endoscopic mucosal resection	650 (86.6)	644 (85.8)
Hybrid endoscopic submucosal dissection	15 (2.0)	20 (2.7)