Table 2.

Survival data of 59 patients stratified into 3 risk groups according to baseline CTC counts

Risk Group	Death N (%)	Censored N (%)	Quartile Survival [weeks]	Median Survival [weeks]
CTC-L (0 CTC) N = 20	2 (10.0)	18 (90.0)	100 95%CI = [85,+oo]	>100 95%CI = [85,+oo]
CTC-M (1-4 CTC) N = 15	7 (46.7)	8 (53.3)	32 95%CI = [12,78]	>78 95%CI = [20,+oo]
CTC-H (≥5 CTC) N = 24	17 (70.8)	7 (29.2)	22 95%CI = [2,42]	60 95%CI = [27,73]
TOTAL N = 59	26 (44.1)	33 (55.9)	46 95%CI = [20,70]	100 95%CI = [70,+oo]

Quartile and median survival times are given together with confidence intervals (CI). N is the number of patients in the respective group.