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Table 3 Association between serum total homocysteine and vitamin B12 concentrations and quartiles (age and sex-specific) of serum folate in Cretan adults.

From: Dietary and other lifestyle correlates of serum folate concentrations in a healthy adult population in Crete, Greece: a cross-sectional study

  Serum folate quartiles (age & gender-specific)  
  Q1 Q2 Q3 Q4  
  Geometric mean p for trend1
Serum total homocysteine (μmol/L) 12.4 10.3 10.2 10.1 <0.001
Serum vitamin B12 (pmol/L) 307.5 305.2 310.4 286.1 -2
  1. 1 ANOVA (linear contrasts).
  2. 2 Not statistically significant.