Associations of alpha diversity measures and of major bacterial taxa and selected genera with levels of microbial enzymatic activity.

aLog values of enzymatic activity IU/100 mg fecal protein. the two significantly associated principal components, per unit increase in alpha diversity, per tertile for Firmicutes and Bacteroidetes phyla, and per level (none, low, high) for the minor phyla, genera and unclassified bacteria.bBeta values estimate the increase (or decrease for negative values) in loge of enzymatic activity for the two significantly associated principal components, per unit increase in alpha diversity, per tertile for Firmicutes and Bacteroidetes phyla, and per level (none, low, high) for the minor phyla, genera and unclassified bacteria.cPrincipal component analysis based on unweighted Unifrac, adjusted for sex and age.dStatistically significant at P