Table 1.

Patient’s characteristics and clinicopathologic correlation of serum HE4 expression levels

		Serum HE4
Clinical variable	All cases	High expression	Low expression	P value
Gender
Male	54	40	14	0.79
Female	46	34	12
Age
< 50 yr	29	21	8	0.64
50-70 yr	40	32	8
> 70 yr	31	21	10
Smoking history
Current	53	39	14	0.31
Former	42	31	11
Never	5	4	1
TNM stage
I	33	20	13	0.003
II	32	24	8
III	23	19	4
IV	12	11	1
Lymph node metastases
No	47	25	22	0.007
Yes	53	49	4
Distant metastases
No	89	64	25	< 0.001
Yes	11	10	1