Table IV.
Comparison of the levels of serum CT and CEA among the three groups.
| Groups | N | CT (pg/ml) | U | P-value | CEA (ng/ml) | U | P-value |
|---|---|---|---|---|---|---|---|
| MTC group | 39 | 345.35 (69.34, 1123.44) | 42.75 (10.67, 102.45) | ||||
| PTC group | 50 | 3.12 (1.79, 4.12)a | 256.500 | <0.01 | 2.79 (1.38, 3.76)a | 288.000 | <0.01 |
| Benign control group | 30 | 2.98 (1.15, 3.98)b | 178.000 | <0.01 | 2.64 (1.07, 3.57)b | 139.000 | <0.01 |
a
P<0.01 vs. the MTC group
b
P<0.01 vs. the MTC group. CT, calcitonin; CEA, carcinoembryonic antigen; MTC, medullary thyroid carcinoma; PTC, papillary thyroid carcinoma. Data are expressed as [mean (25–75%)].