Who was studied 50,603 European ancestry cases, 1,756,950 European ancestry controls.
The effect
Each copy of the C allele shifted the measure 0.0437 higher (95% confidence interval 0.029-0.059); p = 1 × 10−8.
How common The C allele had a frequency of about 36% in the people studied.
Where it sits Chromosome 9, band 9p21.3 — in an intron of MLLT3.
What each result means
C/CPublished research associates this genotype (two copies of the reported risk allele) with a higher likelihood of Benign nodular goiter compared to the general population.
C/TPublished research associates this genotype (one copy of the reported risk allele) with an intermediate association with Benign nodular goiter.
T/TPublished research associates this genotype with typical/baseline likelihood of Benign nodular goiter — no copies of the reported risk allele.
Nature genetics · 2026 · PMID 41644669 · open access
Questions about rs1581978
What is rs1581978?
rs1581978 is a single position in the genome, in or near the MLLT3 gene. Published research associates it with benign nodular goiter. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
What conditions is rs1581978 linked to?
On MyGeneLog this position is linked to Benign Nodular Goiter. The research behind each link, and its sources, are set out on that condition page.
Does having rs1581978 mean I will get this?
No. Common variants like this one move a probability slightly and, on their own, rarely decide anything about one person. Nothing on this page is a diagnosis, and health decisions should be made with a clinician who can see your whole picture.
Where does the information about rs1581978 come from?
GWAS Catalog, Nature genetics 2026, PMID:41644669. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
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