Pediatric TSH Reference Intervals and Prevalence of High Thyroid Antibodies in the Lebanese Population

The aims of this study are to establish reference values for TSH in Lebanese schoolchildren; to look at the relationship between TSH and age, gender, BMI, socioeconomic status (SES), and thyroid antibodies (TAb); and to investigate the prevalence of abnormal TAb in this population. 974 Lebanese scho...

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Main Authors: Marie-Hélène Gannagé-Yared, Nicole Balech, Vanessa Farah, Marianne Antar, Rindala Saliba, Elise Chahine
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:International Journal of Endocrinology
Online Access:http://dx.doi.org/10.1155/2017/6372964
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author Marie-Hélène Gannagé-Yared
Nicole Balech
Vanessa Farah
Marianne Antar
Rindala Saliba
Elise Chahine
author_facet Marie-Hélène Gannagé-Yared
Nicole Balech
Vanessa Farah
Marianne Antar
Rindala Saliba
Elise Chahine
author_sort Marie-Hélène Gannagé-Yared
collection DOAJ
description The aims of this study are to establish reference values for TSH in Lebanese schoolchildren; to look at the relationship between TSH and age, gender, BMI, socioeconomic status (SES), and thyroid antibodies (TAb); and to investigate the prevalence of abnormal TAb in this population. 974 Lebanese schoolchildren aged 8–18 years were recruited from 10 schools of different SES. Third-generation TSH, TPO-Ab, and Tg-Ab measurements were performed using the IMMULITE chemiluminescent immunoassay. The mean TSH is 2.06±1.05 μUI/ml. TSH values are inversely correlated with age p<0.0001, are higher in boys than in girls (resp., 2.14±1.10 and 1.98±0.99 μUI/ml, p=0.017), and are positively correlated with BMI p<0.0001. They are also significantly higher in subjects from low-SES schools p=0.03 and in girls with positive TAb p=0.026. In boys, TSH is independently associated with age, BMI, and schools’ SES (p=0.01, p=0.03, and p=0.026, resp.) while in girls, the association is only significant for age and TAb (p=0.0001 and p=0.015, resp.). The prevalence of TAb is 4.3% (3% for TPO-Ab and 2.1% for Tg-Ab). Our results showed higher TSH values in the pediatric Lebanese population compared to western populations. TSH varies according to age, gender, BMI, and SES and is associated in girls with TAb.
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spelling doaj-art-c88d6da7226a4d2ebc0ccda10c4a10272025-08-20T02:19:45ZengWileyInternational Journal of Endocrinology1687-83371687-83452017-01-01201710.1155/2017/63729646372964Pediatric TSH Reference Intervals and Prevalence of High Thyroid Antibodies in the Lebanese PopulationMarie-Hélène Gannagé-Yared0Nicole Balech1Vanessa Farah2Marianne Antar3Rindala Saliba4Elise Chahine5Department of Endocrinology, Faculty of Medicine, Saint Joseph University, Beirut, LebanonDepartment of Endocrinology, Faculty of Medicine, Saint Joseph University, Beirut, LebanonHormonology Laboratory, Hôtel-Dieu de France Hospital, Beirut, LebanonHormonology Laboratory, Hôtel-Dieu de France Hospital, Beirut, LebanonHormonology Laboratory, Hôtel-Dieu de France Hospital, Beirut, LebanonDepartment of Endocrinology, Faculty of Medicine, Saint Joseph University, Beirut, LebanonThe aims of this study are to establish reference values for TSH in Lebanese schoolchildren; to look at the relationship between TSH and age, gender, BMI, socioeconomic status (SES), and thyroid antibodies (TAb); and to investigate the prevalence of abnormal TAb in this population. 974 Lebanese schoolchildren aged 8–18 years were recruited from 10 schools of different SES. Third-generation TSH, TPO-Ab, and Tg-Ab measurements were performed using the IMMULITE chemiluminescent immunoassay. The mean TSH is 2.06±1.05 μUI/ml. TSH values are inversely correlated with age p<0.0001, are higher in boys than in girls (resp., 2.14±1.10 and 1.98±0.99 μUI/ml, p=0.017), and are positively correlated with BMI p<0.0001. They are also significantly higher in subjects from low-SES schools p=0.03 and in girls with positive TAb p=0.026. In boys, TSH is independently associated with age, BMI, and schools’ SES (p=0.01, p=0.03, and p=0.026, resp.) while in girls, the association is only significant for age and TAb (p=0.0001 and p=0.015, resp.). The prevalence of TAb is 4.3% (3% for TPO-Ab and 2.1% for Tg-Ab). Our results showed higher TSH values in the pediatric Lebanese population compared to western populations. TSH varies according to age, gender, BMI, and SES and is associated in girls with TAb.http://dx.doi.org/10.1155/2017/6372964
spellingShingle Marie-Hélène Gannagé-Yared
Nicole Balech
Vanessa Farah
Marianne Antar
Rindala Saliba
Elise Chahine
Pediatric TSH Reference Intervals and Prevalence of High Thyroid Antibodies in the Lebanese Population
International Journal of Endocrinology
title Pediatric TSH Reference Intervals and Prevalence of High Thyroid Antibodies in the Lebanese Population
title_full Pediatric TSH Reference Intervals and Prevalence of High Thyroid Antibodies in the Lebanese Population
title_fullStr Pediatric TSH Reference Intervals and Prevalence of High Thyroid Antibodies in the Lebanese Population
title_full_unstemmed Pediatric TSH Reference Intervals and Prevalence of High Thyroid Antibodies in the Lebanese Population
title_short Pediatric TSH Reference Intervals and Prevalence of High Thyroid Antibodies in the Lebanese Population
title_sort pediatric tsh reference intervals and prevalence of high thyroid antibodies in the lebanese population
url http://dx.doi.org/10.1155/2017/6372964
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