Table 1:

Comparison of serum CA125, HE4, and CEA levels among the OC group, the benign control group, and the normal control group (x̄±s)

Group	The number of patients	CAl25 (U/ml)	t	P	HE4 (pmol /ml)	t	p	CEA (ng/ml)	t	P
The OC group	122	135.69±30.12a			536.14±81.62a			75.29±14.92a
The benign control group	50	20.32±4.56b	3.774	0.009	102.35±19.38b	5.171	0.002	2.04±0.71b	4.905	0.003
The normal control group	50	18.97±3.65	3.824	0.009	98.76±20.39	5.199	0.002	2.01±0.63	4.908	0.003

Note:

^aindicates P<0.01 vs. the benign control group and the normal control group;

^bindicates P>0.05 vs. the normal control group