1 2022214Reads by AI crawlersClaude0ChatGPT0Google · Gemini0Perplexity0Meta AI0Microsoft · Copilot0Amazon2Apple2China (ByteDance, Huawei, Baidu…)2ByteDance (Doubao)2Others14Total20Counted 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 299,017 European ancestry individuals.
The effect
Each copy of the G allele shifted the measure 0.017 higher (95% confidence interval 0.011-0.023); p = 8 × 10−9.
How common The G allele had a frequency of about 61% in the people studied.
Where it sits Chromosome 18, band 18q21.2 — in an intron of DCC.
What each result means
A/ANo copy of the version the research linked to Attention deficit hyperactivity disorder. This is the starting point the study compared everyone against.
A/GOne copy of the version the research linked to Attention deficit hyperactivity disorder. That is a smaller link than two copies.
G/GTwo copies of the version the research linked to Attention deficit hyperactivity disorder. That is the strongest link of the three results. A link in a study is not a diagnosis.
rs4462678 is a single position in the genome, in or near the DCC gene. Published research associates it with attention deficit hyperactivity disorder. A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.
What conditions is rs4462678 linked to?
On MyGeneLog this position is linked to ADHD (Attention Deficit Hyperactivity Disorder). The research behind each link, and its sources, are set out on that condition page.
Does having rs4462678 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 rs4462678 come from?
GWAS Catalog, Nature genetics 2025, PMID:40962958. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.
1 2022214Reads by AI crawlersClaude0ChatGPT0Google · Gemini0Perplexity0Meta AI0Microsoft · Copilot0Amazon2Apple2China (ByteDance, Huawei, Baidu…)2ByteDance (Doubao)2Others14Total20Counted 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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