[The importance of height of parents for correct estimation of growth of their children (author's transl)].
Linear dependence was found between the height of children and average height of both parents in the group of 100 619 children and parents (Fetter et al. 1951). Equations of regression lines are recorded for every age-class of both boys and girls from 6 to 18 years. Decisive deviations of children's height in individual groups of parents in every class do not significantly differ from standard deviations of the whole class. Decisive deviation valid for the whole class may therefore be used for height standards of children of equal class in all height groups of parents. Age difference between standards of children with equal body height but different average height of parents from 152,5 cm to 180,0 cm is at ages from 6 to 8 years in both sexes, at least 1 year in boys between 9 to 12 years, and in girls from 12 to 18 years up to 4 years. Per 1 cm difference of average parental age from average standard height of adult population either in the positive or negative sense there exists the shift in children height from given class standards. In boys from 6 to 8 years and in girls from 6 to 9 years it makes 4 mm. In boys from 9 to 16 years and in girls from 10 to 14 years it is 5 mm. In boys from 17 to 18 and in girls from 15 to 18 it makes 6 mm in equal sense. The validity of the conclusions may be presumed for both the contemporary generation and groups from other European states as well. Eventual incorporation of assessing criteria after standard parental height into some existing aids used in estimating the growth of children may be anticipated.