The point of comparison with New York was the so-called MECA study of 1996, which sampled children in metropolitan San Juan and Atlanta, inner-city New Haven and Westchester County.
For a general description of all sampled children (regardless of malnutrition statuses), please refer to Table 2 in Appendix.
The data from the Panel Study on Korean Children were mainly collected from the sampled children and parents.
The sampled children comes from both public and private schools and attends both full-day and part-day kindergarten programs, having diverse socioeconomic and racial/ethnic backgrounds.
The significant positive correlation between the fluoride contents of drinking groundwater, urine, serum and prevalence of dental fluorosis among the sampled children is consistent with the findings of Xiang et al. (2004) and suggest that fluorosis among the investigated village children population is mainly caused by fluoride in drinking groundwater.
In fact, no parents of the sampled children actively refused.
Severe anemia is defined as the proportion of sampled children 6 59 months old with Hb levels < 8 g/dL out of all sampled children this age.
Parents of sampled children will be interviewed, with 24 parents interviewed in each trial arm.
Child assent and informed verbal consent were obtained from the sampled children and their parents.
Some of the sampled children may have received vaccinations in regions of different ASHIPs.
The family characteristics for sampled children showed a mixed picture of positive and negative factors.
