Preoperative Serum Calcitonin Level and Ultrasonographic Characteristics Predict the Risk of Metastatic Medullary Thyroid Carcinoma: Functional Analysis of Calcitonin-Related Genes

Table 5

Correlation of CALCA expression with clinical characteristics.

Characteristic	Low expression of CALCA ()	High expression of CALCA ()	value
Age,			0.248
T stage, (%)			0.035
T1	64 (12.8%)	79 (15.8%)
T2	89 (17.8%)	75 (15%)
T3	80 (16%)	90 (18%)
T4	17 (3.4%)	6 (1.2%)
N stage, (%)			0.455
N0	121 (26.8%)	108 (23.9%)
N1	109 (24.1%)	114 (25.2%)
M stage, (%)			0.532
M0	142 (48.8%)	140 (48.1%)
M1	6 (2.1%)	3 (1%)
Pathologic stage, (%)			0.514
Stage I	138 (27.6%)	143 (28.6%)
Stage II	23 (4.6%)	29 (5.8%)
Stage III	57 (11.4%)	55 (11%)
Stage IV	32 (6.4%)	23 (4.6%)
Gender, (%)			1.000
Female	184 (36.7%)	183 (36.5%)
Male	67 (13.3%)	68 (13.5%)
Race, (%)			0.860
Asian	25 (6.1%)	26 (6.3%)
Black or African	15 (3.7%)	12 (2.9%)
American white	170 (41.5%)	162 (39.5%)