Table 4.

Results obtained from a stepwise regression analysis in order to identify the dietary compounds predictors of the relative abundance of the major gallbladder bacterial communities (%).

	Predictors	R 2	β	p Value
Phylum
Actinobacteria	Linoleic fatty acid (g/day)	0.360	−0.600	0.023
Family
Bacteroidaceae	Hydroxyphenylacetic acids (mg/day)	0.709	0.722	0.001
	Insoluble fiber (g/day)		−0.401	0.031
Chitinophagaceae	Soluble hemicellulose (g/day)	0.524	0.724	0.003
Flavobacteriaceae	Insoluble hemicellulose (g/day)	0.393	0.627	0.016
Lachnospiraceae	Hydroxycinnamic acids (mg/day)	0.383	0.619	0.018
Oxalobacteriaceae	Insoluble pectin (g/day)	0.728	0.853	0.000
Promicromonosporaceae	Magnesium (mg/day)	0.962	1.116	0.000
	Digestible carbohydrates (g/day)		−0.313	0.002
Propionibacteriaceae	Trans oleic fatty acid (g/day)	0.378	−0.615	0.019
Genus
Actinobacillus	Trans oleic fatty acid (g/day)	0.321	0.566	0.035
Bacteroides	Hydroxyphenylacetic acids (mg/day)	0.709	0.722	0.001
	Insoluble fiber (g/day)		−0.401	0.031
Cellulosimicrobium	Magnesium (mg/day)	0.962	1.161	0.000
	Digestible carbohydrates (g/day)		−0.313	0.002
Cloacibacterium	Insoluble fiber (g/day)	0.549	0.741	0.002
Escherichia-Shigella	Linoleic acid (g/day)	0.286	−0.535	0.049
Lachnosclostridium	Dietary fiber (g/day)	0.316	0.562	0.036
Lachnospira	Hydroxycinnamic acids (mg/day)	0.894	0.946	0.000
Moraxella	Vitamin C (mg/day)	0.652	0.807	0.000
Propionibacterium	Trans oleic fatty acid (g/day)	0.379	−0.616	0.019
Ruminoclostridium 9	Vitamin C (mg/day)	0.430	0.656	0.011
Sediminibacterium	Soluble hemicellulose (g/day)	0.533	0.730	0.003

Results derived from stepwise regression analysis; R²: coefficient of multiple determinations; β: standardized regression coefficient. Only significant results are presented.