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Table 3 Results of CTC in each clinical stage

From: A critical review of the chest CT scans performed to detect asymptomatic synchronous metastasis in new and recurrent breast cancers

Clinical stage Total number in the study (%) Number scanned (%)* True positive (yield %) False positive (FPR %) Number needed to scan
EBC 499 (69) 200 (40) 4 (2) 22 (11) 50
ABC 98 (14) 93 (95) 8 (9) 11 (12) 12
RBC 56 (8) 36 (64) 2 (6) 1 (3) 18
Others# 73 (10) 6 (2) 0 1
  1. EBC early breast cancer, ABC advanced breast cancer, RBC recurrent breast cancer, FPR false-positive rate
  2. *Percentage of cases with CTC from the total number of cases at each clinical stage in the study cohort
  3. #Others composed of in situ disease, phyllodes tumor breast sarcoma, and cases where no invasive disease was seen on final histology