[Growth references for Norwegian children].
BACKGROUND
The growth charts currently used in Norway, are based on measurements from the 1970s and 80s. New data are available from the Bergen Growth Study collected in 2003 - 6. In 2006, WHO published international charts for 0-5 year-old children.


METHODS
New growth charts based on data from the Bergen Growth Study and the Medical Birth Registry of Norway are presented for children aged 0-19 years. These were compared with existing references and with the WHO curves.


RESULTS
Norwegian children aged 0-4 years have length, height and weight measurements that are only marginally different from those in the Norwegian growth charts in current use. In older children there has been an increase in the 50-percentile for height up to 3.4 cm in boys and 2.5 cm in girls. For children older than four years, weight for height has increased, especially for the upper percentiles. The percentile lines in the new Norwegian reference are generally positioned above the WHO standard for weight at birth, and for length/height, weight and head circumference in the age group 6 months to 5 years.


CONCLUSIONS
The secular trends in growth mirror the need for new charts. The fact that Norwegian children differ from the WHO standards may reflect population differences relating to environment or growth potential between the populations.
Júlíusson
Pétur B
PB
Seksjon for endokrinologi og metabolisme, Barneklinikken, Haukeland universitetssykehus, 5021 Bergen. petur.juliusson@helse-bergen.no
Roelants
Mathieu
M
Eide
Geir Egil
GE
Moster
Dag
D
Juul
Anders
A
Hauspie
Roland
R
Waaler
Per Erik
PE
Bjerknes
Robert
R
D000293:Adolescent; D001827:Body Height; D001835:Body Weight; D002648:Child; D002675:Child, Preschool; D005260:Female; D006128:Growth; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D012016:Reference Values; D014944:World Health Organization; D055815:Young Adult