Hormone Research in Paediatrics
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Article / Publication Details
Abstract
Introduction: Children with self-limited delayed puberty (constitutional delay) enter puberty after variable waiting times, and the factors associated with their eventual pubertal timing are not well understood.
Methods: We conducted a retrospective study of 99 girls and 228 boys with self-limited delayed puberty (DP) at an academic medical center between 2000 and 2015. To define features and potential subtypes of self-limited DP, we performed group-based trajectory modeling on childhood growth and latent-variable factor analysis on clinical characteristics. We then conducted time-to-event analyses to identify associations with pubertal timing.
Results: We identified two distinct growth trajectories in individuals with self-limited DP: one with stable and the other with declining height percentiles. Latent-variable factor analysis identified five factors underlying clinical variation that appear to correspond to genetic height potential, body mass index, childhood growth, parental pubertal delay, and medical issues (attention-deficit/hyperactivity disorder and inhaled glucocorticoid use). We observed correlations between pubertal timing and bone age (p=0.01), childhood height (p=0.004), and midparental target height (p
S. Karger AG, Basel
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