on the threshold of significancep = 0.058
25.6 months in CTC negative patients, p = 0.009), while being on the threshold of significance in rectal cancer patients (11.6 months in CTC positive vs. 18 months in CTC negative patients, p = 0.058) and not wholly significant in patients with primary right colon cancer (11.5 months in CTC positive vs. 15.2 months in CTC negative patients, p = 0.5) ( Figure 1 ). 2.2.