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Table 1 Demographic data of study population

From: The fraction of nitrous oxide in oxygen for facilitating lung collapse during one-lung ventilation with double lumen tube

American Society of
Anesthesiologists score
2 (1–3)
Age(y) 52.5 ± 9.2
Gender (male/female) 19/17
Weight (kg) 57.6 ± 9.2
Height (cm) 157 ± 8.6
Smokers/Non-smokers 3/33
aPleural opening(s) 59.6 ± 12.2
FEV1 (% of predicted) 84.6 ± 12.2
FVC (% of predicted) 82.3 ± 9.2
FEV1/FVC 80.2 ± 8.8
Surgery type
VATS-R 20
VATS-L 16
  1. FEV1 = forced expiratory volume at 1 s; FVC = forced
  2. vital capacity
  3. aTime from incision to pleural opening
  4. VATS = video-assisted thoracoscopic surgery