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The ratio of serum free triiodothyronine to free thyroxine in children: a retrospective database survey of healthy short individuals and patients with severe thyroid hypoplasia or central…

Overview of attention for article published in Thyroid Research, July 2015
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Title
The ratio of serum free triiodothyronine to free thyroxine in children: a retrospective database survey of healthy short individuals and patients with severe thyroid hypoplasia or central hypothyroidism
Published in
Thyroid Research, July 2015
DOI 10.1186/s13044-015-0023-5
Pubmed ID
Authors

Yuji Oto, Koji Muroya, Junko Hanakawa, Yumi Asakura, Masanori Adachi

Abstract

The ratio of serum free triiodothyronine (FT3) to free thyroxine (FT4) has been shown to be constant in healthy adults. However, this ratio has been found to be decreased in athyreotic adult patients on levothyroxine (L-T4) supplementation. In order to better evaluate thyroid-related pathologies in children as well as to establish a reference range, we investigated the FT3/FT4 ratio in a pediatric population. Furthermore, we evaluated this ratio in children with congenital hypothyroidism as well as those with central hypothyroidism. A reference range for the FT3/FT4 ratio was obtained from 129 Japanese children (3-17 y) with idiopathic short stature who were designated as the 'Control' group. Patients with congenital hypothyroidism due to athyreosis or severe thyroid hypoplasia (designated as 'A/Hypoplasia'), as well as patients with central hypothyroidism ('Central'), were recruited from the institutional database. For each group, the mean FT3/FT4 ratio was obtained. In the Control group, the FT3/FT4 ratio was 3.03 ± 0.38 10(-2) pg/ng (mean ± standard deviation) with no age or gender differences. A/Hypoplasia patients showed a significantly decreased mean FT3/FT4 ratio (2.17 ± 0.33, P < 0.001) compared to Control patients, with decreased FT3 and elevated FT4 levels. The Central group also showed a significantly decreased FT3/FT4 ratio (2.55 ± 0.45, P < 0.001) compared to the Control group, with decreased FT3 and equivalent FT4 levels. The FT3/FT4 ratio appears to be constant between the ages of 3-17 y. Children on L-T4 due to congenital thyroid a/hypoplasia or central hypothyroidism have a decreased FT3/FT4 ratio compared to short normal children.

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The data shown below were collected from the profile of 1 X user who shared this research output. Click here to find out more about how the information was compiled.
Mendeley readers

Mendeley readers

The data shown below were compiled from readership statistics for 22 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
Brazil 1 5%
Unknown 21 95%

Demographic breakdown

Readers by professional status Count As %
Researcher 4 18%
Student > Doctoral Student 2 9%
Student > Bachelor 2 9%
Student > Ph. D. Student 2 9%
Student > Postgraduate 2 9%
Other 2 9%
Unknown 8 36%
Readers by discipline Count As %
Medicine and Dentistry 5 23%
Biochemistry, Genetics and Molecular Biology 4 18%
Psychology 2 9%
Agricultural and Biological Sciences 1 5%
Business, Management and Accounting 1 5%
Other 1 5%
Unknown 8 36%
Attention Score in Context

Attention Score in Context

This research output has an Altmetric Attention Score of 2. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 12 July 2015.
All research outputs
#14,231,577
of 22,816,807 outputs
Outputs from Thyroid Research
#60
of 192 outputs
Outputs of similar age
#135,020
of 262,367 outputs
Outputs of similar age from Thyroid Research
#3
of 7 outputs
Altmetric has tracked 22,816,807 research outputs across all sources so far. This one is in the 35th percentile – i.e., 35% of other outputs scored the same or lower than it.
So far Altmetric has tracked 192 research outputs from this source. They receive a mean Attention Score of 4.0. This one has gotten more attention than average, scoring higher than 64% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 262,367 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 45th percentile – i.e., 45% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 7 others from the same source and published within six weeks on either side of this one. This one has scored higher than 4 of them.