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Table 2 Pathologic features and oncologic outcomes

From: Favorable short-term oncologic outcomes following laparoscopic surgery for small T4 colon cancer: a multicenter comparative study

Variable

Open (N = 149)

Laparoscopy (N = 300)

p value

Tumor size (cm)

6 (2–30)

5.2 (0.9–14.5)

< .001a

Node state

N0

53 (35.6)

85 (28.3)

0.118b

N+

96 (64.4)

215 (71.7)

T stage

T4a

85 (57.0)

248 (82.7)

< .001b

T4b

64 (43.0)

52 (17.3)

Angiolymphatic invasion

Not identified

85 (57.0)

78 (26.0)

< .001b

Present

64 (43.0)

222 (74.0)

Venous invasion

Not identified

97 (65.1)

150 (50.0)

0.003b

Present

52 (34.9)

150 (50.0)

Perineural invasion

Not identified

56 (37.6)

66 (22.0)

0.001b

Present

93 (62.4)

234 (78.0)

Combined resection

No

107 (71.8)

282 (94.0)

< .001b

Yes

42 (28.2)

18 (6.0)

R0 resection rate

140 (94)

292 (97.3)

0.078b

Harvested lymph nodes

N = 298

29 (5–117)

29 (7–244)

0.677a

Proximal margin

N = 447

14 (0.5–174)

10.7 (1.5–119.8)

0.004a

Distal margin

8 (0–125.5)

8.3 (0.4–101)

0.532a

Radial margin

N = 100

0.4 (0–8.5)

0.4 (0–4)

0.895a

  1. aWilcoxon rank sum test
  2. bChi-square test
  3. Data are expressed as median (range) for continuous variables and as number (percentage) for categorical variables