Table 1.

Correlation analysis among plasma levels of L-carnitine, TMA and TMAO, as well as between gut microbial abundance and plasma levels of L-carnitine, TMA and TMAO.

	L-carnitine (Area)		TMA (ng mL−1)		TMAO (ng mL−1)
	r	p-Value	r	p-Value	r	p-Value
TMAO (ng mL−1)	+0.152	0.383	+0.492	0.003	1	---
TMA (ng mL−1)	+0.767	<0.001	1	---	+0.492	0.003
L-carnitine (area)	1	---	+0.767	<0.001	+0.152	0.383
Phylum	rho	p-value	rho	p-value	rho	p-value
Lentisphaerae	+0.329	0.058	+0.342	0.047	+0.007	0.970
Tenericutes	−0.362	0.035	−0.369	0.032	+0.003	0.988
Family	rho	p-value	rho	p-value	rho	p-value
Lactobacillaceae	+0.337	0.051	+0.353	0.041	−0.210	0.234
Alcaligenaceae	+0.271	0.122	+0.342	0.048	+0.203	0.250
Victivallaceae	+0.329	0.058	+0.342	0.047	+0.007	0.970
Anaeroplasmataceae	−0.362	0.035	−0.369	0.032	+0.003	0.988
Genus	rho	p-value	rho	p-value	rho	p-value
Lactobacillus	+0.337	0.051	+0.353	0.041	−0.210	0.234
Pigmentiphaga	+0.248	0.157	+0.390	0.023	+0.259	0.139
Victivallis	+0.329	0.058	+0.342	0.047	+0.007	0.970
Anaeroplasma	−0.362	0.035	−0.369	0.032	+0.003	0.988

Abbreviations: r, Pearson correlation coefficient; rho, Spearman correlation coefficient; TMA, trimethylamine; TMAO, trimethylamine N−oxide.