Figure 1.

(A) Maternal antenatal vitamin D concentration stratified by ethnicity and consumption of vitamin D containing supplements. (B) Cord blood vitamin D concentration is strongly correlated with maternal antenatal vitamin D across all ethnicities. The dashed horizontal line marks the level of sufficiency (>75nmol/L) as recommended by the Endocrine Society Clinical Practice Guidelines (ESCPG; Holick et al., 2011). For visualization purposes, the y axis in (A) is truncated at 160nmol/L, which excludes two high values (187, 195) from Chinese mothers who consumed vitamin D containing supplements.