[Height, weight and head circumference according to gestational age in newborn infants born before 35 weeks].

A retrospective and collaborative study was done in Santiago, Chile, in order to obtain national data on birth-weight, height and head circumference of babies born at 24 to 34 weeks of gestation: 370 babies with reliable gestational age, single pregnancies and no maternal nor fetal morbidity were included in the study. Babies were born in three government and one private hospitals from 1982 to 1987. Mean birthweight, height and head circumference for each gestational age from 24 to 34 weeks are presented in tables with their S.D. and charts +/- 1.5 S.D. The national use of these tables and curves is recommended.