Association of symptoms with gastrointestinal microbiota in irritable bowel syndrome

Table 7 Association of Ruminococcus torques 94% phylotype with bowel symptoms and other fecal bacterial phylotypes

Variable	All samples	Ruminococcus torques 94%
		Detected	Undetected
Symptom sums1
All symptoms	83.6 (20.0)	87.6 (19.6)	75.9 (19.1)
Bowel symptoms	24.1 (6.5)	25.4 (6.5)	21.5 (5.8)23
Systemic symptoms	16.4 (4.8)	17.0 (4.7)	15.2 (4.8)
Social function	9.3 (4.3)	10.0 (4.5)	7.8 (3.6)
Emotional function	33.9 (8.1)	35.2 (8.0)	31.5 (7.9)
qPCR assays4
Bifidobacterium catenulatum/Pseudocatenulatum	2.5 (1.7)	2.5 (1.7)	2.5 (1.6)
Bifidobacterium spp.	5.8 (1.0)	5.8 (1.0)	5.9 (1.1)
Clostridium coccoides /Eubacterium rectale-group	7.3 (0.2)	7.3 (0.2)	7.3 (0.2)
Clostridium cocleatum 88%	3.9 (2.8)	3.1 (3.0)	5.4 (1.7)5
Collinsella aerofaciens-like	3.0 (3.8)	1.6 (4.0)	5.6 (0.7)5
Coprococcus eutactus 97%	1.9 (2.8)	0.9 (2.2)	3.7 (3.0)6
Desulfovibrio desulfuricans-group	1.9 (3.0)	1.4 (3.1)	2.7 (2.6)
Eubacterial 16S	6.0 (0.3)	5.9 (0.3)	6.0 (0.4)
Lactobacillus-group	3.9 (0.9)	3.8 (0.8)	4.1 (1.0)
Ruminococcus torques 91%	4.1 (1.5)	4.1 (1.6)	3.9 (1.3)
Ruminococcus torques 94%	2.7 (1.8)	3.8 (1.0)	-
Streptococcus bovis-like	1.9 (1.9)	1.6 (1.6)	2.4 (2.3)
Veillonella spp.	3.0 (1.7)	3.2 (1.7)	3.0 (1.8)

¹Values are presented as averages with standard deviation in parentheses;

²All statistical comparisons made between samples with Ruminococcus torques 94% detected and undetected;

³Significant difference (P < 0.05) using analysis of variance (ANOVA) test with continuous data;

⁴The values are presented as log10 averages with standard deviation in parentheses;

⁵Significant difference (P < 0.05) using ANOVA test with binary data;

⁶Significant difference (P < 0.01) using ANOVA test with binary data.