Table 1 Prognostic impact of esophageal-positive margins in different TNM stages

DiMusto et al. [9]

1044

20

Javidfar et al. [11]

3125

342

T1–3^a

 ≤ 2^b

p < 0.01

Bickenbach et al. [12]

2384

108

T1–2^a

 < 3^b

p < 0.01

Zhe Sun et al. [13]

2159

110

T1–2^a

 ≤ 2^b

p < 0.01

Cho BC et al. [14]

2740

49

T2^a

0^b

p < 0.01

Nagata T et al. [16]

1205

23

/

/

p < 0.01

Wang et al. [17]

1565

129

T1–2^a

 ≤ 2^b

p < 0.01