Table 1. Detection rate of CTC in metastatic colorectal cancer: comparison between CellSearch and Adnatest.

	CTC AdnaTest		Total
	Negative	Positive
CTC Veridex 0 count	5	26	31
% within CTC Veridex	16.1%	83.9%	100.0%
% within CTC AdnaTest	71.4%	81.2%	79.5%
% of total	12.8%	66.7%	79.5%
CTC Veridex 1 count	1	2	3
% within CTC Veridex	33.3%	66.7%	100.0%
% within CTC AdnaTest	14.3%	6.2%	7.7%
% of total	2.6%	5.1%	7.7%
CTC Veridex 2 count	1	0	1
% within CTC Veridex	100.0%	0.0%	100.0%
% within CTC AdnaTest	14.3%	0.0%	2.6%
% of total	2.6%	0.0%	2.6%
CTC Veridex 3 count	0	1	1
% within CTC Veridex	0.0%	100.0%	100.0%
% within CTC AdnaTest	0.0%	3.1%	2.6%
% of total	0.0%	2.6%	2.6%
CTC Veridex 5 count	0	2	2
% within CTC Veridex	0.0%	100.0%	100.0%
% within CTC AdnaTest	0.0%	6.2%	5.1%
% of total	0.0%	5.1%	5.1%
CTC Veridex 11 count	0	1	1
% within CTC Veridex	0.0%	100.0%	100.0%
% within CTC AdnaTest	0.0%	3.1%	2.6%
% of total	0.0%	2.6%	2.6%
Total count	7	32	39
% within CTC Veridex	17.9%	82.1%	100.0%
% within CTC AdnaTest	100.0%	100.0%	100.0%
% of total	17.9%	82.1%	100.0%