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Table 2 PFAA profiles of controls and lung cancer patients

From: The significance and robustness of a plasma free amino acid (PFAA) profile-based multiplex function for detecting lung cancer

A. Concentration

Amino acids

P1

C1

P2

C2

 

Mean

SD

Mean

SD

AUCa

 

Mean

SD

Mean

SD

AUCa

pb

Thr

115.8

30.8

118.5

23.6

0.453

 

122.6

32.0

121.8

25.8

0.483

 

Ser

107.8

20.8

108.8

18.1

0.472

 

110.7

20.1

106.7

17.4

0.560

 

Asn

42.6

7.3

45.2

6.5

0.383

p<0.001

47.9

11.2

46.1

6.5

0.533

 

Gln

547.4

71.4

586.9

64.2

0.347

p<0.001

577.5

84.1

587.1

61.5

0.470

 

Pro

141.6

37.1

132.3

38.4

0.588

p<0.05

157.3

48.5

138.6

38.5

0.630

p<0.001

Gly

214.3

66.2

209.7

52.2

0.490

 

208.0

63.5

203.5

47.9

0.511

 

Ala

324.2

84.5

343.1

74.8

0.428

<p0.05

366.5

99.8

353.5

69.7

0.550

 

Cit

29.0

8.8

33.0

7.4

0.367

p<0.001

33.3

10.3

32.4

7.1

0.530

 

Val

215.1

43.1

220.5

39.7

0.453

 

242.1

43.2

230.0

37.2

0.578

p<0.05

Met

24.2

5.4

25.8

4.6

0.388

p<0.01

26.9

7.2

26.8

4.1

0.489

 

Ile

64.7

16.2

60.8

14.4

0.563

 

73.9

14.0

64.4

13.1

0.689

p<0.001

Leu

117.6

25.3

118.8

23.8

0.484

 

135.2

26.3

125.2

21.3

0.610

p<0.01

Tyr

65.9

15.0

65.2

12.5

0.503

 

71.9

15.9

67.3

10.9

0.579

p<0.05

Phe

59.5

9.9

59.6

9.4

0.496

 

66.5

12.8

61.3

7.9

0.625

p<0.001

His

69.7

12.5

80.2

9.5

0.255

p<0.001

74.1

15.8

81.2

9.4

0.383

p<0.001

Trp

51.3

11.0

57.0

8.8

0.338

p<0.004

56.4

13.4

59.6

8.9

0.432

 

Orn

55.2

13.2

51.7

12.6

0.581

p<0.05

61.7

16.4

51.7

10.4

0.696

p<0.001

Lys

183.9

32.7

189.1

30.4

0.450

 

195.7

37.7

191.6

27.7

0.535

 

Arg

93.1

20.7

95.1

16.8

0.460

 

100.4

24.7

96.4

15.1

0.551

 

B. Ratio

Thr

4.556

0.887

4.544

0.706

0.488

 

4.460

0.749

4.590

0.781

0.445

 

Ser

4.301

0.765

4.200

0.669

0.528

 

4.080

0.601

4.044

0.617

0.521

 

Asn

1.692

0.218

1.740

0.197

0.408

p<0.01

1.749

0.235

1.742

0.194

0.494

 

Gln

21.800

2.097

22.661

2.233

0.383

p<0.001

21.276

2.079

22.253

2.053

0.364

p<0.001

Pro

5.599

1.246

5.049

1.225

0.654

p<0.001

5.756

1.504

5.213

1.211

0.622

p<0.001

Gly

8.543

2.566

8.102

1.994

0.542

 

7.608

1.872

7.703

1.734

0.477

 

Ala

12.715

2.141

13.123

2.156

0.459

 

13.253

2.380

13.321

2.092

0.499

 

Cit

1.150

0.328

1.278

0.288

0.378

p<0.001

1.211

0.311

1.229

0.263

0.469

 

Val

8.530

1.294

8.454

1.109

0.510

 

8.925

1.267

8.696

1.198

0.563

 

Met

0.955

0.128

0.990

0.115

0.407

p<0.01

0.979

0.152

1.011

0.108

0.424

p<0.05

Ile

2.558

0.519

2.321

0.405

0.631

p<0.001

2.727

0.441

2.427

0.415

0.698

p<0.001

Leu

4.657

0.760

4.547

0.643

0.551

 

4.986

0.795

4.731

0.671

0.607

p<0.01

Tyr

2.616

0.495

2.503

0.368

0.560

 

2.644

0.455

2.543

0.335

0.567

 

Phe

2.374

0.370

2.295

0.291

0.557

 

2.470

0.492

2.322

0.272

0.572

p<0.05

His

2.769

0.395

3.091

0.291

0.245

p<0.001

2.702

0.355

3.074

0.295

0.213

p<0.001

Trp

2.034

0.348

2.197

0.301

0.351

p<0.001

2.057

0.373

2.260

0.313

0.338

p<0.001

Orn

2.195

0.482

1.984

0.413

0.631

p<0.001

2.298

0.674

1.955

0.353

0.662

p<0.001

Lys

7.278

0.809

7.265

0.834

0.507

 

7.169

0.760

7.241

0.824

0.485

 

Arg

3.680

0.568

3.657

0.525

0.519

 

3.650

0.550

3.645

0.473

0.494

 
  1. a: AUC indicates AUC of the ROC curve.
  2. b: p value derived from the Mann–Whitney U-test.