Table 1.

Correlations between serum miR-503 expression levels and clinical parameters

Variables	GC patients (n=68)	Healthy controls (n=30)	P-value
Age (years)			0.237
<60	25	16
≥60	43	14
Sex			0.205
Male	43	20
Female	25	10
Tumor size (cm)			0.132
<5	40
≥5	28
Histological grade			0.394
Well and moderate	19
Poor and others	49
Depth of tumor			0.152
T1, T2	17
T3, T4	51
Lymphatic metastasis			0.029*
Absent	27
Present	41
Distant metastasis			0.036
Absent	52
Present	16
Tumor stagea			0.031*
I and II	24
III and IV	44

Notes:

^aAccording to the TNM criteria.

^*P<0.05.

Abbreviation: GC, gastric cancer.