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Table 2 The rank of AUC analysis discriminating the recurrent and non-recurrent cases

From: Lipid biomarkers that reflect postoperative recurrence risk in lung cancer patients who smoke: a case–control study

Rank

ID

Average observed mass (m/z)

Theoretical mass (m/z)

Ion formula

AUC (95% CI)*

ADC

1

944

730.5379

730.5381

C40 H77 O8 N1 P1+

0.655 (0.427—0.882)

2

1737

761.5338

761.5338

C41 H78 O10 N0 P1

0.612 (0.374—0.850)

SQCC

1

1033

736.5285

736.5276

C42 H75 O7 N1 P1+

0.733 (0.490—0.976)

2

347

682.5405

682.5405

C43 H72 O5 N1+

0.700 (0.419—0.981)

3

2236

838.8222

838.8222

C53 H108 O5 N1+

0.617 (0.333—0.901)

4

1832

821.5550

821.5549

C43 H82 O12 N0 P1

0.617 (0.301—0.932)

 5

2277

894.8485

894.8484

C56 H112 O6 N1+

0.583 (0.167—0.999)

 6

2222

808.7753

808.7753

C51 H102 O5 N1+

0.567 (0.220—0.913)

 7

2299

884.8066

884.8066

C57 H106 O5 N1+

0.550 (0.230—0.870)

 8

20

440.3734

440.3734

C26 H50 O4 N1+

0.533 (0.247—0.820)

 9

2219

810.7910

810.7909

C51 H104 O5 N1+

0.533 (0.244—0.823)

 10

948

716.5590

716.5589

C40 H79 O7 N1 P1+

0.500 (0.218—0.782)

 11

126

680.5835

680.5835

C41 H78 O6 N1

0.433 (0.046—0.821)

 12

1722

735.5182

735.5182

C39 H76 O10 N0 P1

0.417 (0.065—0.768)

  1. Abbreviations: ADC Adenocarcinoma, AUC Area under the ROC curve, CI Confidential interval, ID Identical number, m/z Mass to charge ratio, SQCC Squamous cell carcinoma
  2. *Lipids with AUC ≥ 0.6 were selected as candidate lipid markers