Skip to main content
. 2021 Feb 25;22(6):912–921. doi: 10.3348/kjr.2020.0447

Table 1. Baseline Demographics and Clinical Characteristics of the Validation Cohort.

Variables* Value
Mean age (year) (± SD) 67.5 (± 12.1), range 35–95
Sex, n (%)
 Male 54 (63.5)
 Female 31 (36.5)
CRC location
 Colon 63 (74.1)
 Rectum 22 (25.9)
CEA (ng/dL), median (IQR)
 CRLM group 31.8 (8.4–123.5)
 Non-CRLM group 3.0 (1.9–8.3)
T stage (tumor invasion depth), n (%)
 T1–2 (confined to the bowel wall) 12 (14.1)
 T3–4 (beyond the bowel wall) 73 (85.9)
N stage (nodal involvement), n (%)
 N- (node negative) 25 (29.4)
 N+ (node positive) 60 (70.6)
M stage, n (%)
 M0 44 (51.8)
 M1 41 (48.2)
  Liver only 25 (61.0)
  Lung only
  Liver plus extrahepatic 15 (36.6)
Size of CRLM (cm), mean 2.2 (± 2.2), range 0.4–12.4
Number of CRLM per patient, mean (± SD) 2.5 (± 2.0), range 1–8
Number of CRLM ≤ 1 cm, n (%)* 27 (27.3)
Confirmatory method for CRML, n (%)*
Histopathology after hepatic resection or percutaneous biopsy 63 (63.6)
Suspicious MRI finding and follow-up imaging study 36 (36.4)

Values represent the number of subjects (%), median (IQR), or mean (± SD). *The total number of CRLMs was 99. CEA = serum carcinoembryonic antigen, CRC = colorectal cancer, CRLM = colorectal cancer liver metastasis, IQR = interquartile range, MRI = magnetic resonance imaging, SD = standard deviation