Table 2.

Dietary and Serum Choline-Related Metabolites among Controls and HIV-Infected Subjects

	Control Subjects (n=67)	HIV-Infected Subjects (n=155)	P-value
Dietary Intake
Betaine, mg	155.9 (90.3–208.9)	128.9 (94.2–182.3)	0.43
Choline, mg	349.2 (251.5–464.8)	330.7 (218.9–429.4)	0.60
Serum Metabolites
Betaine, μmol/L	6.1 (4.7–7.7)	5.8 (5.1–7.0)	0.32
L-Carnitine, μmol/L	5.9 (4.9–6.7)	5.8 (4.5–6.9)	0.58
Choline, μmol/L	2.0 (1.8–2.2)	1.9 (1.7–2.3)	0.88
TMA, μmol/L	0.3 (0.3–0.4)	0.3 (0.3–1.5)	0.50
TMAO, μmol/L	0.7 (0.5–1.0)	0.7 (0.5–1.1)	0.79

Data reported as median (interquartile range). Abbreviations: TMA, trimethylamine; TMAO, trimethylamine-N-oxide.

Food record data were available for 36 control subjects and 100 HIV-infected subjects.