hrp0097fc14.2 | Late Breaking | ESPE2023

New Reference Values for Thyroid Volume by Ultrasound in German Children and Adolescents Under Iodine-Sufficient Conditions From a Nationwide Study

Hirtz Raphael , Thamm Roma , Kuhnert Ronny , Grasemann Corinna

Introduction: Reliable reference values for thyroid ultrasound measurements are essential to effectively guide individual diagnostics and direct health care measures at the population level, such as iodine fortification programs. However, the latest reference values for total thyroid volume (Tvol) provided by the WHO in 2004 are only applicable to the 6 to 12-year-old age group. Moreover, these values are derived from countries with a long history of iodine su...

hrp0098p1-313 | Late Breaking 2 | ESPE2024

Do We Need Seasonal Thyroid Hormone Reference Values in Pediatric Endocrinology? Results from a Population-Based Study

Hirtz Raphael , Thamm Michael , Kuhnert Ronny , Thamm Roma

Studies in adults provide convincing evidence of seasonal fluctuations in thyroid hormone levels. However, the evidence in children and adolescents is less consistent, potentially due to unaddressed confounding and the use of statistical methods not well-suited to investigate this specific issue. Using the baseline data from KiGGS (German Health Interview and Examination Survey for Children and Adolescents), an analysis was conducted among 6,071 participants aged 6 to 17 years...