Table 2 Potential biomarkers in blood samples from preoperative and postoperative group

From: Exhaled volatile organic compounds as lung cancer biomarkers during one-lung ventilation

Potential biomarkers

RT

p-value

FC

VIP

Tetramethylurea

503.2069977

0.000403

−9.41

1.608

Dimethylphenylcarbinol

635.187991

0.001128

−1.85

1.7

Ethylaniline

690.2972161

0.001611

1.05

2.1212

Caprolactam

948.2270235

0.001128

−0.92

2.4544

Isolongifolene-5-ol

1100.996983

0.00656

−1.16

1.923

  1. Abbreviations: RT, retention time; VIP, variable importance in the projection; FC, fold change, defined as: FC = log2(X1/X2), while X1 denoted the arithmetic mean value of certain metabolite in the preoperative group and X2 denoted the arithmetic mean value in the postoperative group.
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