The PreVENT database was used to
analyze determinants of overweight
(see Statistics section). To calculate
ARs, complete data sets were used and
an appropriate subpopulation of 11 121
children and adolescents aged 3 to 18
years was generated. When compared
with the total population, boys of the
subpopulation were slightly younger
and shorter with no differences in
girls. When compared with the entire
database, the prevalence of overweight,
as well as BMI-SD score, was
lower in the subpopulation (Table 1).