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Table 3 Intraoperative and pathological characteristics

From: Feasibility of subtotal esophagectomy with systematic lymphadenectomy in selected elderly patients with esophageal cancer; a propensity score matching analysis

Characteristic Non-elderly group (n = 100) Elderly group
(n = 50)
P
Surgical approach
 Open 89 (89%) 45 (90%) 0.851
 Thoracoscopic 11 (11%) 5 (10%)
Number of field dissected
 2-field dissection 78 (78%) 40 (80%) 0.777
 3-field dissection 22 (22%) 10 (20%)
Reconstruction
 Jejunal flap 22 (22%) 10 (20%) 0.777
 Gastric tube 78 (78%) 40 (80%)
Operative time (minutes), mean ± SD 473 ± 111 475 ± 122 0.889
Intraoperative blood loss (ml), median (range) 439 (31–1959) 517 (187–1886) 0.051
Intraoperative transfusion (%) 13 (13%) 13 (26%) 0.053
Number of dissected lymph nodes mean ± SD 43.7 ± 14.8 40.1 ± 15.8 0.097
Histopathologic Type (%)
 Squamous cell carcinoma 94 49 0.192
 Adenocarcinoma 2 1
 Others 4 0
Tumor size (mm), mean ± SD 38.3 ± 21.0 44.1 ± 21.6 0.141
Multiple lesion (%) 15 (15%) 8 (16%) 0.873
T factor
 pT0/pTis 1 (1%) 0 0.806
 pT1 51 (51%) 27 (54%)
 pT2 11 (11%) 6 (12%)
 pT3 37 (37%) 17 (34%)
 pT4 0 0
N factor
 pN0 45 (45%) 25 (50%) 0.779
 pN1 30 (30%) 15 (30%)
 pN2 20 (20%) 9 (18%)
 pN3 5 (5%) 1 (2%)
TNM stage
 0 1 (1%) 0 0.546
 I 36 (36%) 21 (42%)
 II 20 (20%) 9 (18%)
 III 36 (36%) 19 (38%)
 IV 7 (7%) 1 (2%)
  1. SD, standard deviation