Table 2.

Concordance of BRAF V600E between primary tumors and LNM.

	BRAF V600E in primary tumors		P	ICC	95% CI
	WT	Mutation
BRAF V600E in LNM
WT	61	21	0.000	0.865	0.835–0.890
Mutation	8	283

PTC, papillary thyroid cancer; LNM, lymph node metastasis; ICC, intra-class correlation coefficient; WT, wild type.