Table 3. Correlations in ACS subjects split on median betaine excretion.

	Plasma dimethylglycine (µmol/L)	Plasma homocysteine (µmol/L)	Betaine excretion (mmol/mole)	Dimethylglycine excretion (mmol/mole)
A. Above median betaine excretion
Plasma betaine (µmol/L)
r =	+0.23	−0.07	−0.05	−0.015
p =	0.0015	0.36	0.50	0.84
n =	194	193	194	194
Plasma dimethylglycine (µmol/L)
r =		+0.23	−0.03	+0.27
p =		0.0016	0.72	0.0001
n =		193	194	194
Plasma homocysteine (µmol/L)
r =			+0.10	+0.07
p =			0.14	0.29
n =			194	194
Betaine excretion (mmol/mole)
r =				+0.39
p =				<0.00001
n =				208
B. Below median betaine excretion
Plasma betaine (µmol/L)
r =	+0.23	−0.012	+0.015	−0.07
p =	0.001	0.87	0.84	0.33
n =	200	192	200	200
Plasma dimethylglycine (µmol/L)
r =		+0.24	−0.12	+0.024
p =		0.0009	0.096	0.74
n =		192	200	200
Plasma homocysteine (µmol/L)
r =			−0.17	−0.056
p =			0.019	0.44
n =			199	199
Betaine excretion (mmol/mole)
r =				+0.23
p =				0.0007
n =				208

Pearson's correlation coefficients calculated using log-transformed data. Plasma betaine and dimethylglycine concentrations corrected for gender difference. Excretions measured as mmole/mole creatinine. Significant correlations in bold.