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Table 2 Patients demographies

From: Comparison of thoracolaparoscopic esophagectomy with cervical anastomosis with McKeown esophagectomy for middle esophageal cancer

  ME group (n = 62) TE group (n = 51) p
Age 65.9 ± 6.5 64.5 ± 5.8 0.234
Gender (male/female) 42/20 36/15 0.745
Body mass index (BMI) 25.3 ± 4.6 22.5 ± 5.3 0.003*
Blood gas analysis    
 PO2 81.6 ± 7.6 82.6 ± 8.3 0.506
 1PCO2 36.4 ± 7.2 35.8 ± 8.6 0.687
Pulmonary function    
 Vital capacity % 88.7 ± 13.6 86.9 ± 14.7 0.501
 FEV1 % 79.4 ± 4.2 80.8 ± 5.3 0.120
Blood routine test    
 White blood cell (102/mm3) 57.5 ± 10.8 60.5 ± 11.4 0.155
 Neutrophil (%) 71.5 ± 7.8 72.6 ± 8.5 0.475
 Hemoglobin (g/L) 121.5 ± 19.4 119.4 ± 22.7 0.597
 Albumin (g/L) 34.5 ± 4.3 33.9 ± 4.6 0.476
History of smoke 35 (56.5 %) 26 (51.0 %) 0.561
History of ethanol 23 (37.1 %) 12 (23.5 %) 0.121
Prior gastric or esophageal surgery 2 (3.2 %) 0 (0 %) 0.196
Previous chest surgery 1 (1.6 %) 0 (0 %) 0.362
Comorbidities    
 Coronary artery disease 5 (8.1 %) 2 (3.9 %) 0.363
 Diabetes mellitus 6 (9.7 %) 7 (13.7 %) 0.502
 COPD/emphysema 4 (6.5 %) 1 (2.0 %) 0.248
ASA grade    0.793
 I 12 (19.4 %) 11 (21.6 %)  
 II 40 (64.5 %) 34 (66.7 %)  
 III 10 (16.1 %) 6 (11.8 %)  
  1. ME McKeown esophagectomy, TE thoracolaparoscopic esophagectomy, PO2 partial pressure of oxygen, PCO2 partial pressure of carbon dioxide, FEV1 forced expiratory volume in 1 s, COPD chronic obstructive pulmonary disease, ASA American Society Of Anesthesiologists
  2. *p < 0.05