Objective. To give standards for quantification of the magnitude of wa
ist circumference in children. Methods: We calculated the percentiles
of waist circumference bq age and sex from a sample of 2858 subjects (
1440 males and 1418 females. aged 6-14 years). Data were from a popula
tion survey of 15 000 school-children in Pescara, a town in Abruzzo, a
region of Central Italy. Results: We reported the values of the calcu
lated percentiles by age and sex and gave the smoothed percentile curv
es. Conclusions: Some recent studies in adults have indicated that mea
suring waist circumference seems to be the simplest way to estimate ob
esity and the risk of cardiovascular disease. In children, similar evi
dence is emerging. To date, no example of calculating standards has be
en published for quantitating the magnitude of waist circumference in
children; therefore. our example of standard waist measurements could
be used as a practical model for selecting subjects with a value of le
ss than or equal to or > 2 SD from the mean. The metabolic status shou
ld then be checked by complementary laboratory examination.