Image Risk Assessment of the Thyroid Cancer Model Based on Discriminant Analysis and the Value of TAP and CEA Combined Detection

Table 4

Serum CEA level and positive rate (%, X ± s).

Group	Number of cases	Numerical value (ng/ml)	CEA expression
			Positive (+)	Negative (−)
Normal group	100	1.00 ± 0.23	0	100
CEA positive group	100	2.54 ± 0.31^a	66	34
TAP positive group	100	5.38 ± 0.51^ab	0	100
TAP + CEA positive	100	15.69 ± 4.01^abc	100	0
x^2/t	55.261
value	0.001

Compared with the normal group, ^a < 0.05; compared with the CEA positive group, ^b < 0.05; compared with the TAP positive group, ^c < 0.05.