Table 2.

The relationship between circRNAs and clinical features of PTC.

Clinical features	Upregulated circRNAs	Downregulated circRNAs
Tumor size	circFNDC3B (14), circFOXM1 (15), hsa_circ_0058124 (17), hsa_circ_0004458 (26), circ_0067934 (28)	hsa_circ_0137287 (22)
Lymph node metastasis	circRASSF2 (13), circFNDC3B (14), circFOXM1 (15), hsa_circ_0058124 (17), circBACH2 (19), circ_0008274 (21), circZFR (23), hsa_circ_0004458 (26), circ_0067934 (28), hsa_circRNA_007148 (31)	hsa_circ_0137287 (22), hsa_circRNA_047771 (31), circ-ITCH (32)
TNM stage	circFNDC3B (14), circFOXM1 (15), hsa_circ_0058124 (17), circBACH2 (19), circ_0008274 (21), circZFR (23), hsa_circ_0004458 (26), circ_0067934 (28)	hsa_circRNA_047771 (31), circ-ITCH (32)
T stage	circRASSF2 (13), hsa_circ_0004458 (26)	hsa_circ_0137287 (22)
Distal metastasis	circRASSF2 (13), hsa_circ_0004458 (26)
Extrathyroidal extension	hsa_circ_0058124 (17)	hsa_circ_0137287 (22)