Table 1.

Clinicopathologic characteristics between the train and test groups.

Clinicopathologic characteristics	Type	Train	Test	P value
Age (years)	≤65	108 (42.19%)	115 (45.45%)	0.5135
	>65	148 (57.81%)	138 (54.55%)
Gender	Female	119 (46.48%)	113 (44.66%)	0.7465
	Male	137 (53.52%)	140 (55.34%)
Stage	Stage I-II	134 (52.34%)	145 (57.31%)	0.3641
	Stage III-IV	113 (44.14%)	102 (40.32%)
	Unknown	9 (3.52%)	6 (2.37%)
T	T1-2	51 (19.92%)	53 (20.95%)	0.8593
	T3-4	205 (80.08%)	200 (79.05%)
M	M0	185 (72.27%)	195 (77.08%)	0.1698
	M1	42 (16.41%)	30 (11.86%)
	Unknown	29 (11.33%)	28 (11.07%)
N	N0	145 (56.64%)	151 (59.68%)	0.5095
	N1-3	111 (43.36%)	101 (39.92%)
	Unknown	0 (0%)	1 (0.4%)