Serum/plasma concentrations of homocysteine, folate, vitamin B12, cholesterol, LDL-cholesterol, HDL-cholesterol, triglycerides and blood Pb by quartiles of ratio of sTfR to ferritin in Pakistani patients with premature AMI.

*Values are means±SD/median (IQR).**p value was based on ANOVA comparing means of quartiles; however, Kruskal-Wallis nonparametric test was applied for comparing the distributions for homocysteine,sTfR = soluble transferrin receptor.