Table 3.

EGFR mutation detection by exosomes in MPEs and matched tumor tissues.

EGFR mutation status		Tissues		Total	Kappa coefficient
		M	WT
Exosomes	M	10	1	11	0.928 (P < 0.001*)
	WT	0	20	20
Total		10	21	31

EGFR, epidermal growth factor receptor; MPEs, malignant pleural effusions; M, mutant; WT, wild type.

^*P value was calculated by Consistency test.