TABLE 4.

The Pearson correlation of homocysteine score or individual one-carbon metabolism–related nutrients with the actual plasma homocysteine concentration in men and women from the training and testing sets¹

	Training set (n = 1619)	Testing set (n = 404)
Homocysteine score	0.26*	0.30*
Alcohol intake	0.08*	0.11*
Total folate intake2	−0.15*	−0.19*
Dietary folate intake2	−0.14*	−0.05
Supplementary folate intake2	−0.16*	−0.19*
Total riboflavin intake2	−0.23*	−0.15*
Total pyridoxin intake2	−0.23*	−0.14*
Total cyanocobalamin intake2	−0.15*	−0.12*
Betaine/choline intake2	−0.10*	−0.08
Methionine intake2	−0.04	−0.07

¹Fasting plasma homocysteine concentrations were ln-transformed, corrected for batch variation, and adjusted for age, gender, and calorie intake by the residual method. *P < 0.05.

²Nutrient values are energy-adjusted intake.