[HTML][HTML] Extent of vitamin A deficiency among preschool children and women of reproductive age
KP West Jr - The Journal of nutrition, 2002 - Elsevier
Knowledge of the extent of vitamin A (VA) deficiency (D) is critical for identifying high-risk
populations and mobilizing resources for prevention. Yet, all estimates are necessarily
imperfect, often based on assumptions in the absence of data. In 1995, the World Health
Organization estimated 254 million children to be VA-deficient and 2.8 million to have
xerophthalmia. Subsequently, estimates were changed to 75–140 million and 3.3 million,
respectively. Although both sets are consistent with a problem of enormous magnitude, the …
populations and mobilizing resources for prevention. Yet, all estimates are necessarily
imperfect, often based on assumptions in the absence of data. In 1995, the World Health
Organization estimated 254 million children to be VA-deficient and 2.8 million to have
xerophthalmia. Subsequently, estimates were changed to 75–140 million and 3.3 million,
respectively. Although both sets are consistent with a problem of enormous magnitude, the …