[Retracted] Detection and Significance of Cell-Free DNA Mutation in Pleural Effusion in Patients with Advanced NSCLC

Table 1

EGFR/KRAS gene mutation results (n = 50%).

Group	EGFR		Total EGFR mutation rate (%)	KRAS		Total KRAS mutation rate (%)
	EGFR19	EGFR21		12 codon	13 codon
Pleural effusion	12 (24.00)	10 (20.00)	22 (44.00)	4 (8.00)	2 (4.00)	6 (12.00)
Pathological tissue	12 (24.00)	12 (24.00)	24 (48.00)	3 (6.00)	1 (2.00)	4 (8.00)
Kappa			0.920			0.779
P			0.688			0.505