[Hungarian growth standard from birth up to the age of 2 years. Data based on results of longitudinal growth studies of a 2 percent representative sample].

The longitudinal project under the title "The health and demographic study of pregnant females and infants" started on a 2 per cent national sample in November 1979.--In a first stage of the project the pregnant women have been examined, in the second stage a longitudinal study of children born alive to these mothers was carried out (still under way).--This is the first longitudinal survey on growth performed on a national representative sample in Hungary. The first results of the project are presented: growth standards for the period from birth to the age of two years (weight and length percentiles referred to age, and body weight related to length).--The growth standards were developed from the data of the longitudinal study of 5,689 children born with a normal weight (between 2500 to 4500 g) and further which developed healthy. The data presented here are thought to be used as standards for growth monitoring and health surveillance of children in Hungary.