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Assessment of Child Anthropometry in a Large Epidemiologic Study
Published on: February 2, 2017
Isolated hyperthyrotropinemia in childhood obesity and its relation with metabolic parameters
Tolga Unüvar1, Ahmet Anık, Gönül Catlı
1Department of Pediatric Endocrinology, Medical Faculty, Adnan Menderes University, Aydın, 09100, Turkey, tunuvar@gmail.com.
Insights
Isolated hyperthyrotropinemia (IH) is more common in obese children. In these children, thyroid-stimulating hormone (TSH) levels positively correlate with BMI-SDS and triglycerides, and negatively with free T4.
Area of Science:
- Pediatric Endocrinology
- Metabolic Disorders
- Thyroid Function
Background:
- Obesity is a growing global health concern in children.
- Thyroid dysfunction, including isolated hyperthyrotropinemia (IH), may be associated with obesity.
- Understanding these associations is crucial for pediatric health management.
Purpose of the Study:
- To determine the prevalence of IH in obese children.
- To investigate the relationship between IH and anthropometric/metabolic parameters in obese children.
Main Methods:
- Retrospective review of hospital records for obese children and matched healthy controls.
- Analysis of thyroid function tests, including thyroid-stimulating hormone (TSH) and free T4 (fT4).
- Correlation and regression analyses to assess relationships between TSH, BMI-SDS, and lipid profiles.
Main Results:
- IH prevalence was significantly higher in obese children (9.2%) compared to controls (3.8%).
- Obese children showed significant differences in BMI-SDS, TSH, and lipid parameters versus controls.
- TSH positively correlated with BMI-SDS and triglycerides, and negatively with fT4 in obese subjects.
Conclusions:
- Obese children exhibit a higher prevalence of isolated hyperthyrotropinemia.
- TSH levels in obese children are influenced by BMI-SDS, triglyceride levels, and fT4 levels.
Purpose:
The aim of the presented study was to evaluate the prevalence of isolated hyperthyrotropinemia (IH) in obese children and the relation between anthropometric and metabolic parameters.
Methods:
Hospital records of the children, who presented to the Pediatric Endocrinology outpatient clinic of our institution with obesity, and age and gender-matched healthy children, who had undergone thyroid function test for any reason were retrospectively reviewed.
Results:
The prevalence of IH was significantly higher in the obese group than in the controls (9.2 and 3.8 %, respectively). Body mass index-standard deviation score (BMI-SDS), thyroid-stimulating hormone (TSH), lipid parameters were significantly different in the obese group than in the control group. A positive correlation between TSH and BMI-SDS and negative correlation between TSH and free T4 (fT4) levels were found in obese subjects. Stepwise multiple linear regression analysis confirmed that BMI-SDS, fT4 and triglyceride levels were the strongest independent variables correlated with TSH level in obese subjects (r (2) = 0.046, p = 0.001).
Conclusions:
IH prevalence is higher in obese children as compared to healthy children and the increase in TSH level correlates negatively with serum fT4 and positively with BMI-SDS and triglyceride levels in obese children.
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