Table 2.

Number of circulating tumor cells (CTCs) isolated in the colon cancer cases.

(A) CTC Count in 2 mL PB Blood
NAC (−)							NAC (+)
Disease Stages	No. of Cases	Range	Mean	Median	SD	Mode	Disease Stages	No. of Cases	Range	Mean	Median	SD	Mode
0	1	N/A	3	N/A	N/A	N/A	0	0	N/A	N/A	N/A	N/A	N/A
I	40	0–13	1.95	1	2.94	0	I	4	0–5	1.5	0.5	2.06	0
II	30	0–9	2.17	2	2.27	0	II	21	0–22	2.48	1	4.61	0
III	1	N/A	3	N/A	N/A	N/A	III	50	0–24	5.28	3	6.22	0
IV	1	N/A	4	N/A	N/A	N/A	IV	15	0–16	4.87	4	4.51	4
(B) CTC Count in 2 mL MVB Blood
NAC (−)							NAC (+)
Disease Stages	No. of Cases	Range	Mean	Median	SD	Mode	Disease Stages	No. of Cases	Range	Mean	Median	SD	Mode
0	1	N/A	0	N/A	N/A	N/A	0	0	N/A	N/A	N/A	N/A	N/A
I	35	0–24	4.31	2	5.76	0	I	2	6–7	6.5	6.5	0.5	N/A
II	25	6–7	3.16	2	4.09	0	II	18	0–8	2.72	2	2.45	2
III	2	0–17	6.5	6.5	0.5	N/A	III	45	0–35	4.44	2	7.69	0
IV	1	N/A	28	N/A	N/A	N/A	IV	12	0–24	8.08	5	7.16	5

NAC—neoadjuvant chemotherapy; SEM—standard error of mean; N/A—not available.