Table 1 Association between clinicopathological characteristics and values of wall rigidity under the barium enema examination profile view in patients with colorectal cancers(n = 145)

Tumor size

< 20 mm

91

6.0 ± 4.3

0.08

2.1 ± 2.2

0.12

≥20 mm

54

9.1 ± 8.3

3.3 ± 3.7

Location

Right side of the colon

38

6.2 ± 4.9

0.42

2.6 ± 2.4

0.36

Left side of the colon

107

7.5 ± 6.6

2.5 ± 3.1

Morphology

Protruding type

75

8.5 ± 6.2

0.002

3.2 ± 3.4

0.006

Superficial type

70

5.7 ± 5.9

1.8 ± 2.1

JNET classification

1/2A/2B

82

5.8 ± 6.0

0.0004

2.3 ± 3.1

0.03

3

63

8.9 ± 6.1

2.8 ± 2.6

Pit pattern classification

I/II/III_L/IIIs/IV/VI low-irregularity

29

5.2 ± 6.4

0.02

2.0 ± 3.3

0.02

VI high-irregularity/VN

116

7.7 ± 6.1

2.7 ± 2.8

Histologic type

Well/mod/pap

143

7.1 ± 6.3

0.31

2.5 ± 2.9

0.71

Por/sig/muc

2

9.4 ± 1.3

2.1 ± 0.8

Depth of submucosal invasion

< 1.8 mm

53

3.2 ± 4.0

0.0001

1.2 ± 1.7

0.0001

≥1.8 mm

92

9.4 ± 6.2

3.3 ± 3.2

Lympho-vascular invasion

Positive

48

9.7 ± 6.8

0.0005

3.6 ± 3.8

0.008

Negative

97

5.9 ± 5.6

2.0 ± 2.2

Tumor budding

Grade 1

131

6.9 ± 5.9

0.25

2.5 ± 3.0

0.20

Grade 2/3

14

10.1 ± 8.6

2.9 ± 2.2

Lymph node metastasis

Positive

11

8.2 ± 7.0

0.76

3.0 ± 2.6

0.64

(Only lesions removed surgically)

Negative

103

8.4 ± 6.3

2.9 ± 3.1