Development and validation of a risk score for advanced colorectal adenoma recurrence after endoscopic resection

Table 2 Univariate analysis of risk factors for 3-year recurrence

Variables	Odds ratio (95%CI)	P-value
Age (reference ≤ 55 yr)	1.31 (0.88-1.44)	0.14
Gender (reference female)	1.47 (0.87-1.88)	0.09
Size (reference ≤ 15 mm)	2.84 (1.75-4.19)	< 0.001
Number of ACAs (reference 1)	2.69 (1.88-4.53)	< 0.001
Morphology (reference pedunculated)		0.01
Sessile	1.96 (1.21-2.43)
Nonpolypoid	2.43 (1.14-3.26)
Location (reference right side colon)	1.18 (0.76-1.35)	0.57
Type of resection (reference en bloc)	8.49 (3.87-11.47)	< 0.001
Histology (reference Tubular)		0.07
Tubulo-Villous	1.49 (0.47-5.18)
Villous	1.73 (0.68-4.45)
Grade of dysplasia (reference low-grade)	3.25 (1.23-5.60)	< 0.001

ACA: Advanced colorectal adenoma.