6 3322512417Reads by AI crawlersClaude2ChatGPT2Google · Gemini0Perplexity0Meta AI5Microsoft · Copilot1Amazon2Apple4Others17Total33Counted by the name each crawler declares; requests found to be impersonating one are left out. Google · Gemini includes Googlebot, the search crawler whose index Google also uses for its AI features. Other search engines and bots are under Others.
Who was studied 25,662 British ancestry cases, 17,928 British ancestry controls; replicated in 13,367 European ancestry cases, 11,851 European ancestry controls, 3,436 cases, 2,435 controls.
The effect
Each copy of the G allele shifted the measure 0.214 lower (95% confidence interval 0.17-0.25); p = 2 × 10−26.
Where it sits Chromosome 2, band 2p22.3 — in an intron of MEMO1.
What each result means
A/APublished research associates this genotype with typical/baseline likelihood of Male-pattern baldness — no copies of the reported risk allele.
A/GPublished research associates this genotype (one copy of the reported risk allele) with an intermediate association with Male-pattern baldness.
G/GPublished research associates this genotype (two copies of the reported risk allele) with a higher likelihood of Male-pattern baldness compared to the general population.
Nature communications · 2017 · PMID 29146897 · open access
Questions about rs13021718
What is rs13021718?
rs13021718 is a single position in the genome, in or near the SRD5A2 gene. Published research associates it with male-pattern baldness. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
What conditions is rs13021718 linked to?
On MyGeneLog this position is linked to Androgenetic Alopecia (Male Pattern Baldness). The research behind each link, and its sources, are set out on that condition page.
Does having rs13021718 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 rs13021718 come from?
GWAS Catalog, Nat Commun 2017, PMID:29146897. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
6 3322512417Reads by AI crawlersClaude2ChatGPT2Google · Gemini0Perplexity0Meta AI5Microsoft · Copilot1Amazon2Apple4Others17Total33Counted by the name each crawler declares; requests found to be impersonating one are left out. Google · Gemini includes Googlebot, the search crawler whose index Google also uses for its AI features. Other search engines and bots are under Others.
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