Table 5. Survival analysis of radiographic-grouping by adjuvant chemotherapy.

Radiographic-grouping		Adjuvant chemotherapy (yes = 1, no = 2)	Patient number	Total	Chi-Square	P
Largest long diameter group	1	1	24	90	0.004	0.950
		2	66
	2	1	23	84	0.138	0.711
		2	61
	3	1	18	74	0.951	0.330
		2	56
	4	1	27	76	6.003	0.014
		2	49
CT lesion length group	1	1	25	97	0.300	0.584
		2	72
	2	1	32	88	0.000	0.986
		2	56
	3	1	16	73	2.500	0.114
		2	57
	4	1	19	66	0.129	0.719
		2	47
Max lesion area group	1	1	18	78	0.281	0.596
		2	60
	2	1	24	89	0.129	0.719
		2	65
	3	1	23	78	0.268	0.604
		2	55
	4	1	27	79	2.012	0.156
		2	52
	Total		324