Taylor, Peter N.  ORCID: https://orcid.org/0000-0002-3436-422X, Sayers, Adrian, Okosieme, Onyebuchi, Das, Gautam, Draman, Mohd S., Tabasum, Arshiya, Abusahmin, Hussam, Rahman, Mohammad, Stevenson, Kirsty, Groom, Alix, Northstone, Kate, Woltersdorf, Wolf, Taylor, Andrew ORCID: https://orcid.org/0000-0002-3436-422X, Ring, Susan, Lazarus, John H., Gregory, John W., Rees, Aled ORCID: https://orcid.org/0000-0002-1165-9092, Timpson, Nicholas and Dayan, Colin M. ORCID: https://orcid.org/0000-0002-6557-3462
2017.
Maturation in serum thyroid function parameters over childhood and puberty: results of a longitudinal study.
Journal of Clinical Endocrinology and Metabolism
102
(7)
, pp. 2508-2515.
10.1210/jc.2016-3605
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Abstract
Context: Serum thyroid hormone levels differ between children and adults, but have not been studied longitudinally through childhood. Objective: To assess changes in thyroid-stimulating hormone (TSH) and thyroid hormone levels over childhood and their interrelationships. Design: Cohort study. Setting: The Avon Longitudinal Study of Parents and Children, a population-based birth cohort. Participants: A total of 4442 children who had thyroid function measured at age 7, and 1263 children who had thyroid function measured at age 15. Eight hundred eighty-four children had measurements at both ages. Main Outcome Measures: Reference ranges for TSH, free tri-iodothyronine (FT3), free thyroxine (FT4), their longitudinal stability, and interrelationships. Results: Children at age 7 years had a higher FT3 [6.17 pmol/L, standard deviation (SD) 0.62] than children at age 15 (5.83 pmol/L, SD 0.74); P , 0.0001 with 23.2% of children at age 7 having FT3 above the adult reference range. Higher FT3 levels at age 7 in boys (P = 0.0001) and girls (P = 0.04) were associated with attainment of a more advanced pubertal stage at age 13. TSH was positively associated with FT3 at age 7 and age 15 even after adjusting for confounders. In contrast, TSH was negatively associated with FT4
| Item Type: | Article |
|---|---|
| Date Type: | Publication |
| Status: | Published |
| Schools: | Research Institutes & Centres > Neuroscience and Mental Health Research Institute (NMHII) Schools > Medicine |
| Additional Information: | This article has been published under the terms of the Creative Commons Attribution License(CCBY;https://creativecommons.org/licenses/by/4.0/),whichpermitsunrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited |
| Publisher: | Oxford University Press |
| ISSN: | 0021-972X |
| Date of First Compliant Deposit: | 10 July 2017 |
| Date of Acceptance: | 24 April 2017 |
| Last Modified: | 11 Oct 2023 18:50 |
| URI: | https://orca.cardiff.ac.uk/id/eprint/102229 |
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