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Table 1 Comparison of baseline demographics between the two groups (F group, flexible mediastinoscopy group; R group, rigid mediastinoscopy group)

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

Variables Category F group (n = 12) R group (n = 17) P
Age (years) Range 41–78 41–75 0.46
Mean ± SD 58.8 ± 10.3 61.9 ± 11.7  
Gender Female 5 9 0.71
Male 7 8  
BMI (kg/m2) Range 20–29 21–29 0.32
Mean ± SD 24.3 ± 3.1 25.4 ± 2.8  
T staging Tis 6 5 0.23
T1a 4 7  
T1b 2 5