Table III.

T-test/Mann-Whitney U test results for EGFR mutation and EGFR non-mutation in NSCLC patients.

		Cases, n
Project code	Variable	EGFR mutation	EGFR non-mutation	Student’s t-test	P-value
X13	Age	83	93	−0.815a	0.416
X14	Tumor volume	20	22	145.500b	0.060
X15	Smoking index	83	93	2463.500b	0.001

^aT-test; and

^bMann-Whitney U test.

EGFR, epidermal growth factor receptor; NSCLC, non-small cell lung cancer.