Table 2. Multivariate analysis of clinicopathological factors that were significantly different between each group on univariate analysis.

Characteristic	p-value univariate analysis	p-value multivariate analysis	OR	95% CI for OR
Resection margin status	0.000	0.677	1.444	0.256–8.125
Medial resection margin status	0.000	0.007	0.028	0.002–0.383
Posterior resection margin status	0.032	0.998	0.000	0.000
Tumour size	0.002	0.132	0.593	0.301–1.170
T-stage	0.014	0.556	1.324	0.520–3.372
N-stage	0.002	0.124	0.370	0.104–1.313
Lymphovascular invasion	0.018	0.229	0.418	0.101–1.734

Abbreviations: OR = Odds ratio. CI = Confidence interval.