Table 1.

Statistical importance of discriminating TTGE bands

CD patients vs Controls (PC1)
TTGE band §	Active + Inactive (%)	Control (%)	VIP	P value (a)
26 (E.coli)	92.1	20.0	2.023	< 0.0001
18 (P.distasonis)	86.8	20.0	1.867	< 0.0001
39 (P.distasonis)	89.5	20.0	1.847	0.0001
35	73.7	0.0	1.802	< 0.0001
1 (B.vulgatus)	89.5	20.0	1.755	0.001
13	57.9	0.0	1.580	0.000
15	63.2	0.0	1.535	0.001
29	60.5	0.0	1.516	0.001
3	52.6	0.0	1.311	0.003
6	60.5	0.0	1.194	0.010
22	52.6	10.0	1.151	0.007
16	39.5	0.0	1.024	0.018
Active CD patients vs Inactive CD patients (PC2)
TTGE band§	Active(%)	Inactive(%)	VIP	P value(b)
8 (P.distasonis)	31.6	0.0	1.691	0.009
1 (B.vulgatus)	84.2	94.7	1.687	0.026
6	47.4	73.7	1.667	0.089
7	26.3	0.0	1.522	0.015
21	21.1	0.0	1.507	0.023
26	94.7	89.5	1.498	0.474
39	89.5	89.5	1.475	1.000
13	73.7	42.1	1.316	0.054
18	94.7	78.9	1.299	0.032
35	78.9	68.4	1.271	0.255
12	36.8	10.5	1.258	0.049
15	68.4	57.9	1.079	0.386
5	36.8	15.8	1.056	0.083
29	68.4	52.6	1.054	0.237
19	47.4	63.2	1.046	0.237
9	78.9	94.7	1.031	0.255

§ Bands were self numbered according to the order of appearance (top-bottom) on the TTGE gel and are listed in descending order of importance (VIP) in the PLS-DA model. Between parentheses are reported the species used in the gel marker that run parallel to specific TTGE bands.

(a) Mann-Whitney U-test, α = 0.05

(b) Wilcoxon signed rank test, α = 0.05