circPOLR1C Promotes the Development of Esophageal Cancer by Adsorbing miR-361-3p and Regulating Cancer Cell Apoptosis and Metastasis

Table 2

Correlation between circPOLR1C expression and clinical parameters of esophageal cancer patients.

Characteristics		n	circPOLR1C expression		value
			Negative	Positive
Gender	Male	26	14	12	0.552
	Female	20	9	11
Age (years)	<60	18	8	10	0.546
	≥60	28	15	13
Tumor size (cm)	<4	22	14	8	0.077
	≥4	24	9	15
Differentiation	Well	14	11	3	<0.001
	Moderate	20	12	8
	Poor	12	0	12
Tumor invasion (T)	T1-T2	21	15	6	0.008
	T3-T4	25	8	17
Lymph node metastasis	Absent	16	7	9	0.536
	Present	30	16	14
TNM stage	I + II	18	11	7	0.227
	III + IV	28	12	16