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Table 1 Demographics and clinicopathologic characteristics

From: Lymph node metastatic patterns and its clinical significance for thoracic superficial esophageal squamous cell carcinoma

Variables

N(%)

Gender

 Male (%)

202 (88.6)

 Female (%)

26 (11.4)

Age (y)

median:64, min-max:41–82

Tumor location

 Upper Tx (%)

34 (14.9)

 Mid Tx (%)

125 (54.8)

 Lower Tx (%)

69 (30.3)

Macroscopic tumor type

 0-I

70 (30.7)

 0-IIa

45 (19.7)

 0-IIb

3 (1.3)

 0-IIc

103 (45.2)

 0-III

7 (3.1)

Tumor length(mm)

median:36, min-max:2–180

Differentiation

 Well (%)

58 (25.4)

 Moderate (%)

86 (37.7)

 Poor (%)

84 (36.8)

Growth pattern

 Expansive (%)

82 (36.0)

 Infiltrative (%)

146 (64.0)

Lymphatic invasion

 Absent (%)

166 (72.8)

 Present (%)

62 (27.2)

Vascular invasion

 Absent (%)

189 (82.9)

 Present (%)

39 (17.1)

pT category

 T1a (%)

62 (27.2)

 M2

27

 M3

35

 T1b (%)

166 (72.8)

 SM1

57

 SM2

61

 SM3

48

pN category

 N0 (%)

135 (59.2)

 N1 (%)

69 (30.3)

 N2 (%)

19 (8.3)

 N3 (%)

5 (2.2)

pM category

 M0 (%)

212 (93.0)

 M1 (lym) (%)

16 (7.0)

pStage

 Stage I(%)

133 (58.3)

 Stage II(%)

64 (28.1)

 Stage III(%)

15 (6.6)

 Stage IV (lym)(%)

16 (7.0)

  1. Tx thorax, NS no significance