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Table 2 Exhaled VOC levels in studied groups

From: Exhaled volatile organic compounds in patients with non-small cell lung cancer: cross sectional and nested short-term follow-up study

  Controls (10-12 M) NSCLC (10-12 M) COPD (10-12 M) Smokers (10-12 M)
Isoprene 3789 (1399 – 6589) 6041 (3130 – 8863) 1758 (453 – 4981) 7243 (1361 – 16968)
2-Methylpentane 27.7 (3.4 – 50.3) 139.5 (65.7 – 298.8) 44.7 (21.7 – 63.8) 109.8 (62.8 – 173.5)
Pentane 268.0 (107.7 – 462.7) 647.5 (361.3 – 1112.5) 477.7 (261.5 – 1547.4) 511.4 (241.3 – 1128.3)
Ethylbenzene 13.6 (10.8 – 15.1) 24.0 (13.6 – 32.6) 51.1 (26.9 – 132.7) 39.7 (21.7 – 74.1)
Xylenes total 31.1 (21.1 – 56.4) 68.9 (43.6 – 108.4) 94.8 (49.7 – 131.9) 85.8 (60.1 – 185.2)
Trimethylbenzene 6.2 (4.7 – 11.0) 14.9 (9.3 – 22.1) 18.5 (10.4 – 25.4) 18.9 (11.9 – 44.9)
Toluene 80.8 (58.9 – 140.0) 158.8 (118.7 – 237.5) 158.5 (103.5 – 269.7) 453.5 (169.6 – 745.7)
Benzene 44.7 (27.7 – 68.6) 94.5 (62.2 – 132.2) 73.3 (51.8 – 95.4) 269.2 (84.6 – 745.1)
Heptane 8.4 (5.0 – 15.3) 13.5 (1.5 – 34.0) 47.3 (13.9 – 98.0) 98.0 (40.3 – 161.7)
Decane 208.7 (14.3 – 405.5) 568.0 (277.9 – 1321.6) 737.3 (524.6 – 1177.6) 239.2 (60.0 – 884.0)
Styrene 12.3 (5.3 – 21.8) 17.9 (8.5 – 37.2) 87.6 (56.0 – 148.8) 7.2 (2.8 – 41.6)
Octane 20.2 (4.0 – 50.8) 61.0 (22.4 – 112.9) 52.5 (31.9 – 147.2) 33.5 (19.7 – 57.8)
Pentamethylheptane 0.9 (0.1 – 2.6) 2.5 (1.2 – 9.7) 2.0 (1.2 – 7.6) 5.8 (1.2 – 16.5)
  1. Concentrations expressed as median values(25th -75th percentile).