Fig 3. Plasma pyridoxal 5-phosphate (P-5-P), low pyridoxal 5-phosphate and, plasma 3-hydroxyknurenine (HK) ratio according to time point and control/intervention group.

Footnote to Fig 3: P-5-P n = 854/867, 707/747, 305/329, 288/293, 251/261 and HK ratio n = 735/746, 692/724, 303/322, 261/270, 217/231, for preconception baseline, preconception 1 month post-supplementation, early pregnancy, late pregnancy, and 6 months postdelivery, respectively.