Table 2.

Spearman’s correlation for fecal microbiota at genus level and clinical features.

		Relative correlation		Absolute correlation
Genus	Clinical features	coefficient	P value	coefficient	P value
Klebsiella	HAMD-17	0.55	<0.001***	0.49	<0.001***
Klebsiella	HAMA	0.31	0.024*	0.27	0.047*
Proteus	HAMD-17	0.33	0.014*	0.33	0.015*
Proteus	TETRAS	0.39	0.004**	0.39	0.004**
Anaerococcus	MMSE	−0.28	0.041*	−0.28	0.043*

All these results were selected from the confirmation of ridge regression analysis. MMSE Mini Mental State Examination, HAMD-17 Hamilton Depression Scale-17 items, HAMA Hamilton Anxiety Scale, TETRAS Tremor Research Group (TRG) Essential Tremor Rating Assessment Scale. *P < 0.05, **P < 0.01.