Table 1 Patient and tumor characteristics

Male sex

36 (78.3)

Endosonographic nodal stage

Age (years) ^a

67.0 (9.0)^a

uN0

4 (8.7)

Body mass index (kg/m²) ^a

25.5 (4.7)^a

uN1

22 (47.8)

Weight loss (kg) ^a

2.0 (7.0)

uN2

14 (30.4)

ASA score

uN3

6 (13.0)

   2

7/43 (16.3)

Clinical metastatic stage (cM)

   3

32/43 (74.4)

M0

46 (100.0)

   4

3/43 (7.0)

Histopathological tumor stage

Cardiac disease

27 (58.7)

ypT0

8/42 (17.4)

Pulmonary disease

8 (17.4)

ypT 1

6/42 (13.0)

Diabetes

10 (21.7)

ypT 2

8/42 (17.4)

Liver disease

7 (15.2)

ypT 3

19/42 (41.3)

Adenocarcinoma

39 (84.8)

ypT 4

2/42 (2.2)

Squamous cell carcinoma

7 (15.2)

Histopathological nodal stage

Endosonographic tumor stage

ypN0

25 (59.5)

   uT1

3/40 (7.5)

ypN 1

6 (14.3)

   uT2

4/40 (10.0)

ypN 2

10 (23.8)

   uT3

30/40 (75.0)

ypN 3

1 (2.4)

   uT4

3/40 (7.5)

Number of resected lymph nodes

30.0 (14.0)^a

Clinical tumor stage

Percentage of positive lymph nodes

8.6 (6.5)^a

   cT1

4 (8.7)

Pathological complete response

7/42 (16.7)

   cT2

4 (8.7)

   cT3

35 (76.1)

   cT4

3 (6.5)