Clinical data

Age (Mean, median, range, years)

65.4 (66, 49 - 78)

Gender (Male/Female)

56/7

Operation time (Mean, median, range, minutes)

657.9 (644, 420 - 984)

Intraoperative blood loss (Mean, median, range, mL)

519.9 (330, 10 - 3020)

Number of dissected lymph nodes (Mean, median, range)

51.4 (52, 21 - 105)

Clinical tumor stage (II/III)

25/38

Histological tumor stage (I/II/III)

12/19/32

Postoperative complications (Yes/No)

29/34

Postoperative hospital stay (Mean, median, range, days)

55.1 (32, 10 - 478)