Table 2.

Detection of TAP and CEA levels of patients in each group ($\overline{x}\pm s$).

Group	Number of cases	TAP	CEA
Normal group	100	89.02 ± 6.79	1.00 ± 0.23
CEA-positive group	100	103.03 ± 9.87a	2.54 ± 0.31a
TAP-positive group	100	138.56 ± 12.25ab	5.38 ± 0.51ab
CEA + TAP-positive group	100	210.01 ± 15.81abc	15.69 ± 4.01abc
F	—	68.591	55.261
P	—	0.001	0.001

Note: compared with the normal group, ^aP < 0.05; compared with the CEA-positive group, ^bP < 0.05; compared with the TAP-positive group, ^cP < 0.05.