Table 2.

Correlations between microbiota phyla and cognitive test performances.

	Bacteroidetes	Firmicutes	Proteobacteria	Verrucomicrobia
HVLT-R Total Learning	−0.03	.12	−.29	.39*
HVLT-R Delay Recall	−.16	.26	−.22	.23
HVLT-R Recognition/Discrimination	−.23	.23	−.41*	.22
CFT Immediate Recall	−.34*	.39*	−.14	.02
CFT Delay Recall	−.33*	.35*	−.14	.07
TMT-A	−.22	.16	−.06	.37*
TMT-B	−.22	.13	.04	.37*
SCWT Word	−.19	.06	−.15	.38*
SCWT Color	−.27	.21	−.16	.38*
SCWT Color Word	−.33	.21	−.13	.29
FAB	−.19	.26	−.40*	.29
FAS	−.17	.11	−.34*	.31
Animal Naming	−.04	−.02	.15	.13

^*p < 0.05

List of Abbreviations: HVLT-R = Hopkins Verbal Learning Test – Revised, RCFT = Rey-Osterrieth Complex Figure Task, TMT = Trail Making Test, SCWT = Stroop Color Word Test, FAB = Frontal Assessment Battery, FAS = Verbal Association Fluency