Children of Deviant Birthweight: the Influence of Genetic and Other Factors on Size at Seven Years

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Abstract
138 small-for-gestational age (SGA), 138 average-for-gestational age (AGA) and 136 large-for-gestational age (LGA) children who had been followed up from birth were measured at the age of seven years. Parental measurements were also obtained. Significant differences for weight, height and head circumference of the children and their parents were found between the three groups. There were highly significant parent-child correlations for most somatic measures in all groups. Within each group the parental contribution to the variance in children''s somatic measures was large; so also was the effect of sex on head circumference. Other biological and pathological factors made only a small contribution in any group.