Multivariate logistic regression analysis indicated that children with low and depleted iron storage or Hmong ethnicity had a 2.0 times higher risk of low and vitamin D deficiency than children with normal iron storage or other ethnicities. (p < 0.05); Female or children who did not have lunch at school had a 3.0 times higher risk of low and vitamin D deficiency than males or students who had lunch at school (p<0.001).