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Table 1 Comparisons between LT and HT regarding baseline characteristics

From: Does the level of inferior mesenteric artery ligation affect short-term and long-term outcomes of patients with sigmoid colon cancer or rectal cancer? A single-center retrospective study

Characteristics

Ligation level

χ2/t

p-

 

Low (N = 307)

High (N = 283)

Value

value

Age

58.47 ± 12.82

57.53 ± 12.36

0.908

0.364

 ≤ 65 y

209 (68.1%)

201 (71.0%)

0.603

0.437

 > 65 y

98 (31.9%)

82 (29.0%)

  

Gender

  

2.976

0.085

 Male

175 (57.0%)

181 (64.0%)

  

 Female

132 (43.0%)

102 (36.0%)

  

Diabetes and/or hypertension

  

2.435

0.119

 Yes

47 (15.3%)

31 (11.0%)

  

 No

260 (86.7%)

252 (89.0%)

  

Tumor size

  

0.595

0.441

 ≤ 5 cm

218 (71.0%)

209 (73.9%)

  

 > 5 cm

89 (29.0%)

74 (26.1%)

  

Location

  

3.575

0.059

 Sigmoid colon

109 (35.5%)

122 (43.1%)

  

 Rectum

198 (64.5%)

161 (56.9%)

  

Gross morphology

  

0.632

0.729

 Mass forming

97 (31.6%)

95 (33.6%)

  

 Ulcerative

174 (56.7%)

160 (56.5%)

  

 Infiltrative

36 (11.7%)

28 (9.9%)

  

Differentiation

  

2.430

0.297

 Well

18 (5.9%)

20 (7.1%)

  

 Moderate

257 (83.7%)

223 (78.8%)

  

 Poor

32 (10.4%)

40 (14.1%)

  

Histological component

  

0.825

0.662

 Adenocarcinoma

295 (96.1%)

268 (94.7%)

  

 Mucinous carcinoma

11 (3.6%)

13 (4.6%)

  

 Signet-ring cell carcinoma

1 (0.3%)

2 (0.7%)

  

Vascular invasion

  

0.992

0.319

 No

295 (96.1%)

267 (94.3%)

  

 Yes

12 (3.9%)

16 (5.7%)

  

Nerve invasion

  

0.184

0.668

 No

301 (98.0%)

276 (97.5%)

  

 Yes

6 (2.0%)

7 (2.5%)

  

Depth of invasion

  

6.306

0.098

 T1

12 (3.9%)

7 (2.5%)

  

 T2

72 (23.5%)

46 (16.2%)

  

 T3

141 (45.9%)

149 (52.7%)

  

 T4

82 (26.7%)

81 (28.6%)

  

Lymph node metastasis

  

2.450

0.294

 N0

189 (61.6%)

159 (56.2%)

  

 N1

71 (23.1%)

81 (28.6%)

  

 N2

47 (15.3%)

43 (15.2%)

  

pTNM

  

5.285

0.071

 I

69 (22.5%)

43 (15.2%)

  

 II

120 (39.1%)

116 (41.0%)

  

 III

118 (38.4%)

124 (43.8%)

  

CEA level (μg/L)

  

0.653

0.419

 ≤ 5

205 (66.8%)

180 (63.6%)

  

 > 5

102 (33.2%)

103 (36.4%)

  

Chemotherapy

  

2.059

0.151

 No

170 (55.4%)

140 (49.5%)

  

 Yes

137 (44.6%)

143 (50.5%)

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