Comparative analysis of the short and medium-term efficacy of the Da Vinci robot versus laparoscopic total mesangectomy for rectal cancer

Table 4 Comparison of the 3-year survival outcomes of rectal cancer patients

	TNM staging		Phase I		Phase II		Phase III
	Number of cases	%	Number of cases	%	Number of cases	%	Number of cases	%
Disease-free survival	83	74.1	25	89.3	37	84.1	21	52.5
	109	85.2	30	93.8	44	88	35	76.1
	4.962		0.403		0.323		5.799
	0.026		0.525		0.57		0.016
Total survival	91	81.3	26	92.9	39	88.6	26	65
	117	91.4	31	96.9	47	94	39	84.8
	5.494		0.499		0.852		4.787
	0.019		0.48		0.356		0.029

TNM: Tumor-node-metastasis.