Background: Growth in height during puberty can be described by the QEPS-model as a combination of continuous basal growth, QES, and a specific pubertal growth function, P.
Objective and hypotheses: To study the relationship between childhood BMISDS and the prepubertal gain and pubertal gain related to growth functions from the QEPS-model.
Method: The longitudinally followed GrowUpGothenburg 1990 birth cohort, was analyzed, by the QEPS-model. Individual maximal BMISDS values, from 3.58.0 years of age (n=1901) were calculated for linear and subgroup analyses, underweight (blue cross), normal (blue open circles), overweight (red open circles), obese (red circles).
Results: For girls (Figure left), total pubertal gain (Tpubgain) depended more on QESgain during puberty. For boys, total pubertal gain depended more on specific Pgain (Figure right). With higher BMISDS this balance was shifted towards less Pgain for both girls and boys. Before puberty, children with higher BMISDS were taller, expressed as higher QESgain, with a linear correlation over the whole BMIrange (P<0.001for both girls/ boys).
Conclusion: During puberty, girls grew more due to the QES than the P functions, with opposite findings in boys. For both boys and girls, there were less Pgain and more QES- gain with higher childhood BMISDS. Before puberty, children with higher BMISDS were taller.
10 Sep 2016 - 12 Sep 2016