Table 4. Relationship between EGFR mutations and FISH phenotype in patients with NSCLC.

FISH phenotype	Total	EGFR mutation [cases (%)]		R	P
		Presence	Absence
High polysomy	91	33 (36)	58 (64)	0.375	<0.001
Amplification	37	24 (65)	13 (35)
FISH negativity	77	9 (12)	68 (88)

Abbreviations as in Table 1.