Table 1 Patient baseline, treatment, and sequencing characteristics by cohort

From: The colorectal liver metastasis growth pattern phenotype is not dependent on genotype

   

MSKCC

New EPOC

    
  

missing (%)

n = 308 (%)

n = 153 (%)

p-value

 

308

153

Age at resection of CRLM - (median [IQR])

 

54.0 [46.0, 63.0]

64.0 [59.0, 69.0]

<0.001

0

  

Gender

Male

 

185 (60)

104 (68)

0.10

0

  

Female

 

123 (40)

49 (32)

    

Primary tumour location

Right-sided

21 (5)

77 (27)

30 (20)

0.06

4.6

  

Left-sided

 

124 (43)

61 (40)

    

Rectal

 

86 (30)

62 (41)

    

T-stage

pT 0-2

24 (5)

47 (16)

16 (11)

0.15

5.2

  

pT 3-4

 

244 (84)

130 (89)

    

N-stage

N0

24 (5)

94 (32)

47 (32)

0.96

5.2

  

N + 

 

198 (68)

98 (68)

    

Number of CRLM - (median [IQR])

 

6 (1)

2 [1,5]

2 [1,3]

<0.001

1.3

  

Diameter of largest CRLM in cm - (median [IQR])

15 (3)

2.5 [1.7, 4.2]

1.9 [1.2, 3.3]

<0.001

3.3

  

Disease-free interval in monthsa - (median [IQR])

2 (0)

0 [0, 5]

1 [0, 13]

<0.001

0.4

  

Preoperative CEA in µg/L - (median [IQR])

31 (7)

9.8 [3.8, 64.4]

12.9 [4.5, 34.0]

0.68

6.7

  

Perioperative systemic chemotherapy

No

2 (0)

25 (8)

0 (0)

<0.001

0.4

  

Yes

 

281 (92)

153 (100)

    

Resection margin involved

No

7 (2)

254 (83)

118 (79)

0.29

1.5

  

Yes

 

51 (17)

31 (21)

    

Extrahepatic disease

No

 

236 (77)

149 (97)

<0.001

0

  

Yes

 

72 (23)

4 (3)

    

Growth pattern phenotype

Non-encapsulated

 

246 (80)

111 (73)

0.08

0

  

Encapsulated

 

62 (20)

42 (27)

    

Origin of sequenced sample

CRLM

 

157 (51)

142 (93)

<0.001

0

  

CRC

 

151 (49)

11 (7)

    

Average coverage depth - (median [IQR])

 

714.0 [593.5, 843.5]

585.9 [477.2, 653.6]

<0.001

0

  

Mutations per megabase - (median [IQR])

 

5.1 [3.6, 6.5]

6.1 [4.6, 9.1]

<0.001

0

  
  1. CEA carcinoembryonic antigen, CRC colorectal cancer, CRLM colorectal liver metastasis, IQR interquartile range, MSKCC Memorial Sloan Kettering Cancer Center.
  2. aBetween resection of primary tumour and detection of CRLM.