Table 3.

Comparison of resectability rates of metastases in the two groups (%)

Groups	n			Resectability before treatment	Resection rate after treatment	χ2	P
Control group	42	Localized liver metastasis	17	3 (17.65)	5 (29.41)	0.654	0.419
		Non-restricted liver metastasis	15	1 (6.67)	3 (20.00)	1.154	0.283
		Non-liver metastasis	10	1 (10.00)	2 (20.00)	0.392	0.531
		Total		5 (11.90)	10 (23.81)	2.029	0.154
Observation group	45	Localized liver metastasis	17	2 (11.76)	10 (58.82)	8.242	0.004
		Non-restricted liver metastasis	15	1 (6.67)	5 (33.33)	3.333	0.068
		Non-liver metastasis	10	1 (10.00)	3 (30.00)	1.250	0.264
		total		4 (8.89)	18 (40.00)	11.791	0.001