Table 1.

Characteristic of the study population (n = 120)

Variables	Number	Median (25th percentile, 75th percentile)
Gender
Male	101 (84.2%)
Female	19 (15.8%)
Age (years)		68 (63, 74)
ASA classification
1	55 (45.8%)
≥2	65 (54.2%)
Tumor location
Upper	11 (9.2%)
Middle	55 (45.8%)
Lower	54 (45%)
Pathological T
T0, T1a, T1b, T2	80 (66.7%)
T3, T4	40 (33.3%)
Pathological N
Absent	64 (53.3%)
Present	56 (46.7%)
Lymphatic invasion
Absent	57 (47.5%)
Present	63 (52.5%)
Venous invasion
Absent	81 (67.5%)
Present	39 (32.5%)
Pathology
SCC	108 (90.0%)
Others	12 (10.0%)
Pathological stage
0	14 (11.7%)
I	31 (25.8%)
II	40 (33.3%)
III	24 (20.0%)
IV	11 (9.2%)
Preoperative treatment
Absent	64 (53.3%)
Present	56 (46.7%)
Estimated blood loss (g)		495.0 (305.5, 719.8)
Duration of operation (min)		551.0 (420.5, 632.0)
Approach of operation
Open	33 (27.5%)
Thoracoscopic	87 (72.5%)
Lymphadenectomy
Two-field	53 (44.2%)
Three-field	67 (55.8%)
Location of anastomosis
Cervical	73 (60.8%)
Intrathoracic	47 (39.2%)
Route of reconstruction
Subcutaneous	4 (3.3%)
Retrosternal	61 (50.8%)
Posterior mediastinal	55 (45.8%)
Method of anastomosis
End-to-side	112 (93.3%)
End-to-end	8 (6.7%)
ICG fluorescein imaging
ICG (−) group	61 (50.8%)
ICG (+) group	59 (49.2%)
Complications
Anastomotic leakage	8 (6.7%)
Necrosis of gastric conduit	1 (0.83%)
Anastomotic-bronchial fistula	1 (0.83%)
Surgical site infection	24 (20.0%)
Respiratory complication	23 (19.2%)
Recurrent laryngeal nerve paralysis	14 (11.7%)

ASA American society of anesthesiologists, SCC squamous cell carcinoma, ICG indocyanine green