European Journal of Epidemiology

, Volume 11, Issue 5, pp 601-606

First online:

A birth weight for gestational age standard based on data in the Swedish Medical Birth Registry, 1985–1989

  • Bengt KällénAffiliated withTornblad Institute, University of Lund Email author 

Rent the article at a discount

Rent now

* Final gross prices may vary according to local VAT.

Get Access


Birth weight curves according to gestational length are presented based on data from more than 480,000 singleton births, registered in the Medical Birth Registry and with gestational age based on ultrasound examinations in the majority of cases. Curves were constructed from the most common weights in each week (modes) for each sex and standard deviations were estimated under the assumption of a fixed coefficient of variation, the size of which was estimated from 40 weeks infants. This methodology makes it possible to construct graphs for specific subgroups of infants: such graphs for boys and girls for primiparous and multiparous women are given in the paper.

Key words

Birth weight Gestational duration Growth Registry