Table 2 Top 10 discriminant features between cholangiocarcinoma cases from Thailand and United Kingdom.

From: Mapping of population disparities in the cholangiocarcinoma urinary metabolome

m/z

RT

Compound

Adduct

Class

VIP

Trend

152.071

2.46

Paracetamol

M + H

analgesic

11.3

UK

140.017

2.64

Paracetamol cysteine

fragment

analgesic metabolite

10.1

UK

271.076

2.64

Paracetamol cysteine

M + H

analgesic

8.7

UK

208.043

2.64

Paracetamol cysteine

fragment

analgesic metabolite

8.4

UK

152.071

2.97

Paracetamol

Isomer

analgesic

7.3

UK

396.044

3.87

Ceftriaxone

fragment

antibiotic metabolite

11.5

Thai

555.054

3.87

Ceftriaxone

M + H

antibiotic

11.2

Thai

332.14

4.03

Ciprofloxacin

M + H

antibiotic

12.5

UK

333.146

4.03

Ciprofloxacin

isotope

antibiotic metabolite

8.4

UK

443.218

5.13

Metaxolone

2 M + H

analgesic/muscle relaxant

9.8

UK

326.087

2.46

Paracetamol glucuronide

M-H

analgesic

4.6

UK

653.182

2.46

Paracetamol glucuronide

2 M-H

analgesic metabolite

6.4

UK

246.007

2.53

Unknown

  

6.0

UK

299.035

2.91

Unknown

  

4.1

UK

260.022

3.06

Unknown

  

7.9

UK

311.07

3.53

Unknown

  

5.4

UK

623.147

3.53

Unknown

  

5.7

UK

276.001

3.66

Diclofenac/Voltaren

M-H2O-H

NSAID

8.3

UK

410.081

4.79

Sulfociprofloxacin

M-H

antibiotic

9.6

UK

246.949

5.22

Unknown

  

18.8

UK

  1. Non-steroidal anti-inflammatory drug;
  2. m/z = mass–charge ratio; RT = retention time; VIP = variable importance in projection score.