Table 3.

Chi-square test for association of distribution of EGFR and EML4-ALK gene mutations with age and gender.

variable	EGFR (n = 135)		p-value	EML4-ALK fusion gene (n = 131)		p-value
	Wild type n	Mutated n		Wild type n	Mutated n
Sex
Male	56	25	0.2	69	9	0.05a
Female	31	23		52	1
Age in years
≤50	22	12	0.9	26	5	0.05a
>50	65	36		95	5

^aFisher's exact test.