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Table 1 Baseline patient characteristics

From: The feasibility and advantage of uniportal video-assisted thoracoscopic surgery (VATS) in pulmonary lobectomy

Characteristic Uniportal VATS (n = 73) Two-port VATS (n = 86) Three-port VATS (n = 98) P-value
Age (Mean ± SD) 57.12 ± 6.43 54.36 ± 7.6 61.32 ± 7.54 <0.001
Sex (%)     0.288
 Male 31 (42.47%) 45 (52.33%) 53 (54.08%)  
 Female 42 (51.53%) 41 (47.67%) 45 (45.92%)  
Pulmonary function (Mean ± SD)
 FVC (% predicted) 90.83 ± 13.43 88.32 ± 15.87 85.33 ± 15.87 0.064
 FEV1 (% predicted) 86.18 ± 12.91 82.70 ± 16.30 80.71 ± 19.08 0.104
 MVV (% predicted) 69.26 ± 18.84 67.75 ± 25.10 70.78 ± 21.43 0.649
Arterial blood gas analysis (Mean ± SD)
 PAO2 (mmHg) 84.87 ± 12.62 83.10 ± 18.43 79.75 ± 14.20 0.085
 PACO2 (mmHg) 41.26 ± 5.01 42.37 ± 5.85 42.61 ± 6.12 0.286
 SAO2 (%) 96.55 ± 1.42 95.58 ± 2.47 95.72 ± 3.37 0.048
Lobectomy (%)
 Right upper 16 (21.92%) 28 (32.56%) 23 (23.47%) 0.237
 Right middle 4 (5.48%) 6 (6.98%) 11 (11.22%) 0.352
 Right lower 18 (24.66%) 13 (15.12%) 23 (23.47%) 0.254
 Right middle and lower 3 (4.11%) 1 (1.16%) 0 (%) 0.069
 Left upper 12 (16.44%) 16 (18.6%) 24 (24.49%) 0.388
 Left lower 19 (26.03%) 22 (25.58%) 16 (16.33%) 0.207
 Left pneumonectomy 1 (1.37%) 0 (%) 1 (1.02%) 0.744
  1. FVC forced vital capacity, FEV1 forced expiratory volume in 1 second, MVV maximal ventilatory volume, PAO 2 partial pressure of oxygen in artery, PACO 2 partial pressure of carbon dioxide in artery, SAO 2 arterial oxygen saturation