Real-world local recurrence rate after cold polypectomy in colorectal polyps less than 10 mm using propensity score matching

doi:10.3748/wjg.v27.i47.8182

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World Journal of Gastroenterology

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1007-9327

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

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World J Gastroenterol. Dec 21, 2021; 27(47): 8182-8193
Published online Dec 21, 2021. doi: 10.3748/wjg.v27.i47.8182

Table 3 Characteristics of excised polyps after propensity score matching

	CP, mean ± SD or n (%)	HP, mean ± SD or n (%)	P-value
Number of polyps excised	215	215
Size, mm	4.95 ± 1.60	4.94 ± 1.58	0.952^a
Morphology			0.847^b
Sessile	111 (51.6)	113 (52.6)
Flat	104 (48.4)	102 (47.4)
Location			0.736^b
Cecum	13 (6.0)	15 (7.0)
Ascending colon	54 (25.1)	51 (23.7)
Transverse colon	71 (33.0)	48 (22.3)
Descending colon	27 (12.6)	26 (12.1)
Sigmoid colon	41 (19.1)	55 (25.6)
Rectum	9 (4.2)	20 (9.3)
Polypectomy device			0.688^c
Snare	213 (99.1)	213 (99.1)
Biopsy forceps	2 (0.9)	2 (0.9)
Pathologic diagnosis¹	210 lesions	212 lesions	0.117^b
Low-grade adenoma	186 (88.6)	168 (79.2)
Advanced neoplasia²	7 (3.3)	14 (6.6)
Hyperplastic polyp and SSL	14 (6.7)	28 (13.2)
Others	3 (1.4)	2 (0.9)
Failure of tissue retrieval	5 (2.3)	3 (1.4)	0.362^c

¹Indicates polyps that were retrieved successfully and evaluated pathologically.

²Defined as high-grade dysplasia or the lesions including villous or tubulovillous adenoma component.

^aStudent's t-test.

^bChi-Square test.

^cFisher's Exact test.

CP: Cold polypectomy; HP: Hot polypectomy; SSL: Sessile serrated lesion.

Citation: Saito M, Yamamura T, Nakamura M, Maeda K, Sawada T, Ishikawa E, Mizutani Y, Ishikawa T, Kakushima N, Furukawa K, Ohno E, Kawashima H, Ishigami M, Fujishiro M. Real-world local recurrence rate after cold polypectomy in colorectal polyps less than 10 mm using propensity score matching. World J Gastroenterol 2021; 27(47): 8182-8193
URL: https://www.wjgnet.com/1007-9327/full/v27/i47/8182.htm
DOI: https://dx.doi.org/10.3748/wjg.v27.i47.8182