The data set contains data from children of Dutch descent (biological parents
are born in the Netherlands). Children with growth-related diseases were
excluded. The data were used to construct new growth charts of children of
Dutch descent (Schonbeck 2013), and to calculate overweight and obesity
prevalence (Schonbeck 2011).
Some groups were underrepresented. Multiple imputation was used to create
synthetic cases that were used to correct for the nonresponse. See Van Buuren
(2012), chapter 8 for details.