Research and analysis of circulating tumor cell detection in the diagnosis and treatment of gastric cancer

Table 1 Relationship between circulating tumor cells level and clinicopathological features of gastric cancer, n (%)

Clinicopathological features	n	CTCs positive	CTCs negative	χ2	P value
Age (years)
≥ 60	23	16 (69.57)	7 (30.43)	2.364	0.315
< 60	17	12 (70.58)	5 (29.41)
Sex
Male	22	16 (72.72)	6 (27.28)	0.028	0.874
Female	18	10 (55.55)	8 (44.44)
Degree of differentiation
Low differentiation	22	13 (59.09)	9 (40.90)	0.587	0.632
High differentiation	18	11 (61.11)	7 (38.89)
Lymph node metastasis
Positive	23	15 (65.21)	8 (34.78)	4.369	0.498
Negative	17	12 (70.58)	5 (29.41)
TNM staging
I + II	20	9 (45.00)	11 (24.44)	4.127	0.001
III + IV	20	13 (32.50)	7 (35.00)
Vascular invasion
Yes	17	12 (70.59)	5 (29.41)	8.153	0.002
No	23	13 (56.52)	10 (43.47)

CTCs: Circulating tumor cells; TNM: Tumor-node-metastasis.