Dietary intakes of selected micronutrients by quintiles of SES among WRA in rural communities in northern Vietnam.

1Recommended dietary allowance for iron is based on assumption of low bioavailability of iron from Vietnamese diet (12%), rather than the 18% from a mixed Western diet. Recommended dietary allowance for zinc also is based on assumption of low bioavailability.
2Estimated average requirement (EAR) for iron and zinc are also based on assumption of low bioavailability as above.
3RDA and EAR are based on WHO recommendation for non-pregnant, non-lactating women >19 y [16].
4Differences across SES groups for all nutrients are statistically significant by Wilcoxon rank test (p<0.0001).
5Values are median (interquartile range).
6Vitamin A expressed in retinol activity equivalents (RAE).
7Values are mean ± SD.