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Table 2 The baseline characteristics of the patients

From: Digital chest drainage system versus traditional chest drainage system after pulmonary resection: a systematic review and meta-analysis

Studies Male (%) Age (years) VATS (%) Lobectomy (%)
Digital Traditional Digital Traditional Digital Traditional Digital Traditional
Takamochi 2017 51.8 48.7 66.6 ± 12.6 67.9 ± 10.9 NA NA 77 81.1
Waele 2017 48.1 51.9 68.5 ± 10.3 64.8 ± 10.6 56.2 43.8 50.8 49.2
Miller 2016 55 60 63 (48–77) 63 (52–79) 100 100 85 85
Shoji 2016 69 86 67 (20–88) 65 (19–87) NA NA 66 62
Filosso 2015 60 60 69 ± 7.9 67 ± 8.3 NA NA 80 78
Gilbert 2015 36.5 36.8 68 (60–72) 68 (60–75) 73.6 70.6 70.1 83.5
Pompili 2014 49 55 66.5 ± 12.1 65.9 ± 10.2 82 80 83 88
Brunelli 2009 70 77 66.1 ± 12.8 67.3 ± 8.4 NA NA NA NA
  1. VATS video-assisted thoracic surgery, NA not available