Table 1 Comparison of cortactin and EGFR status to demographic, clinical, and pathologic data

	Cortactin status ^a				EGFR status ^a
	n	−	+	P	n	−	+	P
Patient cohort
Age (years) 37–82 (median 63)
Interpretable for cortactin	176	99	77
Interpretable for EGFR					176	66	110
Positive control
Interpretable for cortactin	7	0	7
Noninterpretable	1
Interpretable for EGFR					9	2	7
Noninterpretable					2
Gender
Male	138	76	62	0.11	138	36	102	0.13
Female	38	23	15		38	30	8
Site
Oral cavity	40	20	20	0.42	40	10	30	0.39
Pharynx	57	42	15		57	21	36	0.11
Larynx	79	66	13		79	35	39
TNM stage
I	34	15	19	0.005^†	34	24	10	0.004^†
II	44	19	25		44	20	24
III	48	15	23		48	16	32
IV	50	12	38		50	14	36
Grade
Well differentiated	27	15	12	0.001^†	27	16	11	0.001^†
Moderately differentiated	94	24	70		94	34	60
Poorly differentiated	55	11	44		55	11	44

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