Table 2. EGFR mutations in MPTT samples.

	Number of patients	Number of mutations	Mutation frequency (%)	P-value
Gender
Male	23	8	34.8
Female	18	11	61.1	0.093*
Smoking history
Former and current smoker	13	3	23.1
Never smoker	28	16	57.1	0.042**

*: Male versus Female, ** Smoking verse Non-smoking