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Table 2 Patient characteristics stratified by TPC or PPC

From: A total pleural covering of absorbable cellulose mesh prevents pneumothorax recurrence in patients with Birt-Hogg-Dubé syndrome

  TPC 52 LPC 38 P value
Backgrounds:
 Age at the first pneumothorax episode (years) 38 ± 9.5a 38 ± 11a 0.944
 Age at surgery 40 ± 9.9a 42 ± 9.7a 0.431
 Gender (male/female) 28 / 24 18 / 20 0.544
 Laterality (right/left) 29 / 23 21 / 17 0.962
Surgical approach:
 VATS / Open thoracotomy 52 / 0 38 / 0 N/A
 Number of used ports 4.0 ± 0.28a 3.3 ± 0.45a <  0.001
Surgical material:
 ORC mesh (10.2 × 20.3 cm) 14 ± 2.3a 9.0 ± 2.3a <  0.001
 Amount of fibrin sealant (mL) 9.1 ± 2.7a 7.1 ± 1.9a <  0.001
 Operating time (minutes) 140 ± 35a 110 ± 32a <  0.001
 Severe complication (≥ grade IIIa)b (during surgery) 0 0 N/A
 Follow-up period after surgery (months) 38 ± 22a 65 ± 20a <  0.001
  1. TPC total pleural covering, LPC lower pleural covering, VATS video-assisted thoracoscopic surgery, ORC oxidized regenerated cellulose, N/A not applicable
  2. aMean ± standard deviation, bClavien-Dindo classification