Table 3.

Univariate and multivariate logistic regression analysis for disease recurrence

Clinicopathological factors	Univariate analysis OR (95% CI), p value	Multivariate analysis OR (95% CI), p value
Tumour grade
Low grade	1.00 (ref)	1.00 (ref)
High grade	2.69 (1.22–5.97), 0.01	1.32 (0.48–3.62), 0.59
Polyp shape
Sessile	1.00 (ref)	1.00 (ref)
Pedunculated	1.02 (0.51–2.04), 0.96	1.43 (0.64–3.23), 0.39
Polyp size, mm
<4	1.00 (ref)	1.00 (ref)
≥4	1.76 (0.57–5.47), 0.33	0.79 (0.22–2.87), 0.72
Resection margin, mm
>0	1.00 (ref)	1.00 (ref)
0	3.44 (1.77–6.68), 0.0003	2.45 (1.10–5.48), 0.03
Resection margin, mm
>1	1.00 (ref)	1.00 (ref)
0–1	1.67 (0.85–3.28), 0.14	0.98 (0.44–2.22), 0.97
High risk (Haggitt level 3–4 or Kikuchi Sm3)
No	1.00 (ref)	1.00 (ref)
Yes	6.02 (1.46–24.9), 0.01	3.34 (0.69–16.2), 0.14
Intramural venous invasion
No	1.00 (ref)	1.00 (ref)
Yes	3.35 (1.67–6.70), 0.008	3.04 (1.41–6.53), 0.005
Lymphatic invasion
No	1.00 (ref)	1.00 (ref)
Yes	3.67 (1.88–7.14), 0.0007	2.54 (1.18–5.47), 0.02
Budding level
Bd1	1.00 (ref)	1.00 (ref)
Bd2–3	2.99 (1.35–6.62), 0.08	1.44 (0.55–3.75), 0.46