Table 3 Median values and ranges of the concentration (ppm) of volatile organic compounds (VOC) of faecal and urine samples from treated celiac disease (T-CD) children and non-celiac children (HC) as determined by gas-chromatography mass spectrometry/solid-phase microextraction (GC-MS/SPME) analysis

20.31^b

0 - 846.97

0.47^c

0 - 40.00

47.73^a

1.83 - 496.83

0.99^c

0 - 8.05

214.83^b

0 - 890.86

1.46^c

0 - 25.44

387.07^a

0 - 499.88

3.49^c

0 - 63.67

90.88^b

0 - 2402.50

54.01^c

0 - 295.03

112.83^a

0 - 416.20

64.49^c

0 - 458.78

16.69^b

0 - 1327.15

4.25^c

0 - 67.07

119.13^a

0.22 - 635.25

3.14^c

0.15 - 62.56

17.59^c

0 - 512.28

64.31^a

0.34 - 166.31

37.46^b

2.08 - 365.25

73.37^a

0.50 - 199.56

230.14^a

0 - 2311.29

2.25^c

0 - 17.5

122.56^b

0 - 934.22

2.14^c

0 - 34.96

6.73^a

0 - 653.61

0.3^b

0.05 - 1.57

9.37^a

0 - 432.74

0.43^b

0 - 1.47

0^a

0 - 32.51

0^a

0

0^a

0 - 31.99

0^a

0

178.24^b

0 - 143.67

2.10^c

0.04 - 28.16

480.20^a

233.74 - 993.94

2.78^c

0 - 16.30

23.01^a

0 - 837.50

0^c

0 - 1.37

26.37^a

0 - 65.75

0.34^b

0 - 2.37

21.64^a

0 - 1438.28

3^b

0.08 - 31.14

27.85^a

0 - 1037.50

3.82^b

1.44 - 24.87