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Table 1 Demography and clinical data (n, %)

From: Lymph node metastasis pattern and significance of left gastric artery lymph node dissection in esophagectomy for esophageal cancers

Variables

Left gastric artery lymph node positive (n = 42)

Left gastric artery lymph node negative (n = 137)

P

Sex (M/F)

25/17

79/58

0.47

Age (years, mean ± SD)

61.5 ± 10.1

63.6 ± 15.4

0.36

Smoking (n)

12 (28.6%)

63 (46.0%)

0.28

Alcohol abuse (n)

13 (31.0%)

46 (33.6%)

0.38

Hypertension (n)

9 (21.4%)

28 (20.4%)

0.56

Diabetes mellitus (n)

2 (4.8%)

8 (5.8%)

0.78

Hyperlipidemia (n)

8 (19.0%)

15 (10.9%)

0.57

Cancer location (n, %)

 Upper segment

6 (14.3)

9 (6.6)

0.16

 Middle segment

21 (50)

70 (51.1)

 Lower segment

15 (35.7)

58 (42.3)

Cancer length (cm)

2.4–9.5 (5.6)

2.2–8.8 (5.3)

0.79

Infiltration depth (n, %)

 Tis

2 (4.8)

6 (4.4)

0.02

 T1

12 (28.6)

48 (35.0)

 T2

10 (23.8)

33 (24.1)

 T3

6 (14.3)

27 (19.7)

 T4

12 (28.6)

23 (16.8)

Pathological type

 Squamous cell carcinoma

39 (92.9%)

132 (96.4%)

0.48

 Adenocarcinoma

3 (7.1%)

5 (3.6%)

Tumor differentiated

 Well

3 (7.1%)

7 (5.1%)

0.19

 Moderately

26 (61.9%)

87 (63.5%)

 Low

13 (31.0%)

43 (31.4%)

Other lymph node metastasis

 Paraesophageal nodes

15 (35.7%)

28 (20.4%)

0.31

 Subcarinal nodes

8 (19.0%)

8 (5.8%)

 Para-cardia

7 (16.7%)

10 (7.3%)

TNM classification

 0

0

1 (0.7%)

0.18

 I

4 (9.5%)

11 (8.0%)

 II

4 (9.5%)

71 (51.8%)

 III

26 (61.9%)

51 (37.2%)

 IV

8 (19.0%)

3 (2.2%)

  1. SD standard deviation