Evidence map›Paper›PMID 42607083›Full record

Observational studyPloS one2026

The effects of stimulated thyroglobulin/ thyroid-stimulating hormone ratio and N1b status on the efficacy of the first I-131 treatment in patients with differentiated thyroid cancer.

Supanida Mayurasakorn, Charoonsak Somboonporn, Daris Theerakulpisut

Abstract readObservational Study
In one paragraph

Observational study in PloS one, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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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

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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

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0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

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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

3 authors.

Supanida MayurasakornDivision of Nuclear Medicine, Department of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.ORCID https://orcid.org/0000-0002-4162-0914
Charoonsak SomboonpornDivision of Nuclear Medicine, Department of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.
Daris TheerakulpisutDivision of Nuclear Medicine, Department of Radiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.ORCID https://orcid.org/0000-0002-1338-511X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThyroglobulin (Tg) level is one of the well-known factors affecting the outcome of radioactive iodine treatment in differentiated thyroid cancer, though this tumor marker is affected by the thyroid-stimulating hormone (TSH) level. To negate this influence, there is an effort to use the stimulated thyroglobulin/ thyroid-stimulating hormone (sTg/TSH) ratio instead of stimulated thyroglobulin (sTg) level alone. N1b cervical lymph node metastasis is also another factor mentioned in literature. This study aims to demonstrate the significance of these two factors whether they affect the treatment outcome in differentiated thyroid cancer patients who received the first radioactive iodine treatment.

methodsThis was a retrospective analytical observational study. The population were patients with differentiated thyroid cancer with an age of 18 years and above who received the first radioactive iodine treatment at our center from 1 January 2020-31 December 2023. The total population was 227 patients. Logistic regression analysis was done to determine the significant factors affecting the outcome of the first radioactive iodine treatment.

resultsIn 227 patients, the median value for sTg and sTg/TSH ratio were 9.4 ng/mL and 0.2, respectively. Multiple logistic regression found that sTg/TSH ratio and N1b status were not independent risk factors for non-excellent response after radioactive iodine treatment. The independent risk factors were male sex, intermediate and high risk of recurrence, stage II and sTg of more than or equal to 9.4 ng/mL. Receiver operating characteristic (ROC) analysis showed that sTg and sTg/TSH ratio had rather similar performance in differentiating between excellent and non-excellent response groups.

conclusionsTg/TSH ratio and N1b cervical lymph node metastasis were not significant independent factors for non-excellent response after the first radioactive iodine treatment, which was possibly due to multicollinearity and small sample size. Independent risk factors for non-excellent response of the first radioiodine treatment were male sex, intermediate and high risk of recurrence, stage II and sTg of more than or equal to 9.4 ng/mL.

Indexed as

Iodine RadioisotopesThyroglobulinThyroid NeoplasmsThyrotropinAdultAgedFemaleHumansLymphatic MetastasisMaleMiddle AgedRetrospective StudiesTreatment OutcomeIodine-131Iodine RadioisotopesThyroglobulinThyrotropin

Identifiers

PMID42607083
PMCPMC13480613

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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.