Correlation between the neuroendocrine axis, microbial species, inflammatory response, and gastrointestinal symptoms in irritable bowel syndrome

Table 3 Comparison of gut microbiota indicators between different phenotypes of irritable bowel syndrome

	IBS-D	IBS-C	IBS-M	IBS-U	F	P value
Number of cases	36	24	15	5	-	-
Bacteroides (lgCFU/g)	8.55 ± 0.75	8.62 ± 0.82	8.61 ± 0.90	8.70 ± 0.95	0.719	0.491
Lactobacillus (lgCFU/g)	7.47 ± 0.62	7.38 ± 0.48	7.65 ± 0.71	7.22 ± 0.59	5.872	0.430
Bifidobacterium (lgCFU/g)	6.23 ± 0.71	6.17 ± 0.56	5.96 ± 0.62	6.08 ± 0.48	6.754	0.217
Escherichia coli (lgCFU/g)	8.45 ± 0.66	8.58 ± 0.91	8.23 ± 0.83	8.64 ± 0.72	2.519	0.846
Enterococcus (lgCFU/g)	8.75 ± 0.83	8.92 ± 0.74	8.85 ± 1.02	8.28 ± 0.91	3.719	0.290

IBS-D: Diarrhea predominant IBS; IBS-C: Constipation predominant IBS; IBS-M: Mixed-type IBS; IBS-U: Unspecified-type IBS.