ESPE Abstracts

Background: There is limited information on the ability of demographic or lifestyle factors to predict short term changes in weight status during childhood.Objective and hypotheses: To study the effect of parental (educational level, BMI status and perception of child’s weight status) and childhood factors (eating habits, sedentary behaviour and physical activity), on 1-year BMI increments by the use of BMI, BMI SDS and BMI SDS conditional gain....

Background: Hereditary hypophosphatemic rickets (HR) is a group of rare diseases with disordered phosphate metabolism. The Norwegian cohort of HR patients has not previously been described.Objective and hypotheses: The aim of the study was to characterize the genotype, phenotype, and complications to treatment in a national cohort of Norwegian children HR.Method: For assessment of genotype, Sanger sequencing of PHEX, FGF23, DMP...

Background: Clinical assessment of pubertal breast development using Tanner staging is subjective. This has led to the introduction of ultrasound, aiming for a more objective analysis. However, information regarding its reliability is lacking.Objective: To examine intra- and inter-observer agreement of breast maturity staging using ultrasound, and to examine the precision of direct measurements of the gland.Materials and methods: F...

Aim: A decline in the age at menarche has been reported in recent years in several well-off populations. The prevalence of childhood overweight and obesity has increased during the last decades with some levelling off during the last years. The aim of the present study was to study the association between parameters of overweight and menarche in Norway.Material: Cross-sectional data from The Bergen Growth Study, collected in 2003–2006 from 4016 girl...

Background: Anthropometry is the general tool for defining overweight and obesity, with BMI cut-offs adjusted for sex and age, as the most commonly used variable in childhood.Objective and hypotheses: Based on the interrelationships between BMI and different overweight-related anthropometric variables we wanted to find out which anthropometric variables contribute most to the variation in BMI, and how age affect this picture?Method...

Background: Prader orchidometry has been the standard method for evaluating testicular size. As this technique is subjective and tends to overestimate the testicular volume, ultrasound has been proposed as a more reliable method.Objective: To evaluate the intra- and inter-observer agreement of ultrasound measurements of testicular volume and comparison with Prader orchidometry.Materials and methods: Length, width and depth of the r...

Objective: Recent studies have suggested earlier onset of pubertal development in boys. As assessment with orchidometer tends to overestimate true testicular volume (TV), and measurements based on ultrasound (US) have been proposed as a more reliable method, we present US based references in 6-16 year-old Norwegian boys. Our results are compared with data from Europe and the United States (U.S.) in order to establish evidence for an ongoing secular trend in ma...