Table 5. Risk factors for immediate post-CSP bleeding (n = 399).

	Immediate bleeding (n = 19)	Univariate analysis		Multivariate analysis
		Crude OR (95% CI)	P value	Adjusted OR (95% CI)	P value
Age, n (%)
≥65	9 (3.8)	0.60 (0.24–1.51)	0.278
<65	10 (6.2)
Sex, n (%)
Male	15 (5.0)	1.27 (0.41–3.91)	0.680
Female	4 (4.0)
Location, n (%)
Left	8 (4.4)	0.86 (0.34–2.18)	0.745
Right	11 (5.1)
Size, n (%)
Small	3 (6.8)	1.55 (0.43–5.55)	0.500
Diminutive	16 (4.5)
Shape, n (%)
Protruded	14 (8.0)	3.77 (1.33–10.7)	0.013	3.54 (1.24–10.1)	0.018
Superficial	5 (2.2)
Endoscopist, n (%)
Non-expert	10 (6.7)	1.90 (0.76–4.80)	0.172	1.63 (0.64–4.17)	0.307
Expert	9 (3.6)
NBI-M, n (%)
Yes	3 (4.0)	0.80 (0.23–2.83)	0.731
No	16 (4.9)

Abbreviations: CSP, cold snare polypectomy; OR, odds ratio; CI, confidence interval; NBI-M, narrow-band imaging with magnification.