Evidence map›Paper›PMID 31664954›Full record

ArticleBMC pediatrics2019

Thyroid dysfunction in preterm infants born before 32 gestational weeks.

Hye-Rim Kim, Young Hwa Jung, Chang Won Choi, Hye Rim Chung, Min-Jae Kang, Beyong Il Kim

Open access · goldAbstract read
In one paragraph

Article in BMC pediatrics, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
6.2field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

13 citing papers in PubMed, 28 citations in OpenAlex.

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  12. Thyroid Function Test in Preterm Neonates: Normative Data.Indian journal of endocrinology and metabolism
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 4 institutions in 1 country.

Hye-Rim KimDepartment of Pediatrics, Bundang CHA Medical Center, CHA University, Seongnam, Republic of Korea.
Young Hwa JungDepartment of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea. jyhtlcn@gmail.com.
Chang Won ChoiDepartment of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea.
Hye Rim ChungDepartment of Pediatrics, Seoul National University Bundang Hospital, 82 Gumi-ro 173 Beon-gil, Bundang-gu, Seongnam, 13620, Republic of Korea.
Min-Jae KangDepartment of Pediatrics, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea.
Beyong Il KimDepartment of Pediatrics, Seoul National University College of Medicine, Seoul, Republic of Korea.
Seoul National University Bundang Hospital · KRCHA University · KRHallym University Sacred Heart Hospital · KRSeoul National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThyroid hormones are critical for growth and brain development during the newborn period and infancy. Because of delayed maturation of the hypothalamic-pituitary-thyroid axis in preterm infants, thyroid dysfunction is common, and thyroid stimulating hormone (TSH) elevation is often delayed in preterm infants. The objective of this study was to determine the incidence of thyroid dysfunction requiring levothyroxine treatment and to identify its risk factors in preterm infants.

methodsA retrospective cohort study was performed on preterm infants who were born before 32 gestational weeks and admitted to a single tertiary academic center for more than 8 weeks between January 2008 and December 2014. In these infants, serial thyroid function tests (TFTs) measuring serum TSH and free thyroxine (fT4) were routinely performed at 1, 3, and 6 weeks of postnatal age.

resultsOf the 220 preterm infants enrolled, 180 infants underwent TFTs at 1, 3, and 6 weeks of postnatal age and were included in the study. Of the 180 infants, 35 infants (19.4%) were started on levothyroxine treatment based on the results of serial TFTs. Among the 35 infants who were treated with levothyroxine, 16 infants (45.7%) had normal results on the initial TFT. Three of these 16 infants continued to have normal results on the second TFT. Thyroid dysfunction requiring levothyroxine treatment was significantly associated with maternal pregnancy-induced hypertension (adjusted odds ratio 2.64, 95% confidence interval 1.02-6.81).

conclusionsThyroid dysfunction requiring levothyroxine treatment occurred in nearly one-fifth of preterm infants born before 32 gestational weeks. Nearly half of the preterm infants who were treated with levothyroxine had normal TSH and fT4 levels at 1 week of postnatal age. The findings of the present study suggest that serial TFTs is important to find preterm infants who require levothyroxine treatment.

Indexed as

FemaleGestational AgeHormone Replacement TherapyHumansInfant, NewbornInfant, PrematureMaleRetrospective StudiesThyroid DiseasesThyroid Function TestsThyrotropinThyroxineThyrotropinThyroxinePremature infantsThyroid dysfunctionThyroid function test

Identifiers

PMID31664954
PMCPMC6819381
OpenAlexW2982342020

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.