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Table 2 Comparison of clinical data between the two groups

From: The application of rigid and flexible mediastinoscopy in esophagectomy: our experience and a new technology

Variables F group (n = 12) R group (n = 17) P
Operating details
 Operating time (min) 192.9 ± 13.0 246.8 ± 6.9  < 0.001
 Intraoperative blood loss (ml) 114.2 ± 17.5 111.7 ± 16.0 0.69
 Number of thoracic lymph nodes 8.5 ± 2.2 6.0 ± 1.4 0.002
  Upper mediastinum 2.1 ± 0.3 2.0 ± 0.6 0.67
  Middle mediastinum 3.3 ± 1.0 2.2 ± 0.6  < 0.001
  Lower mediastinum 3.1 ± 1.2 1.8 ± 0.5  < 0.001
Postoperative complications 16.7% vs 11.8%  
 Pleural effusion 2 0  
 Recurrent laryngeal nerve injury 0 1  
 Chylothorax 0 1  
Postoperative hospital stay (days) 7.6 ± 1.3 6.9 ± 1.2 0.15
Follow-up time (month) 8.9 ± 3.2 13.5 ± 8.5