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Smoking status (ever vs never smokers)

TMEM18 · rs13396935

Stands on its own. Nothing else here links to this position yet — but the page above is the point: what the research found, what each genotype means, and where it came from, in language you can read. Links to conditions, drugs and the senses appear automatically if we write them.

What the study found

Who was studied 518,633 European ancestry individuals.

The effect Each copy of the A allele shifted the measure 0.0191 lower (95% confidence interval 0.014-0.024); p = 4 × 10⁻¹³.

How common The A allele had a frequency of about 18% in the people studied.

Where it sits Chromosome 2, band 2p25.3 — between genes, 10.7 kb from TMEM18.

What each result means

A/A Two copies of the version the research linked to Smoking status (ever vs never smokers). That is the strongest link of the three results. A link in a study is not a diagnosis.

A/G One copy of the version the research linked to Smoking status (ever vs never smokers). That is a smaller link than two copies.

G/G No copy of the version the research linked to Smoking status (ever vs never smokers). This is the starting point the study compared everyone against.

Source

Genome-wide association analyses of risk tolerance and risky behaviors in over 1 million individuals identify hundreds of loci and shared genetic influences

Karlsson Linnér R, Biroli P, Kong E, Meddens SFW, Wedow R, Fontana MA, Lebreton M, Tino SP, Abdellaoui A, Hammerschlag AR, Nivard MG, Okbay A

and 80 more — show all

Rietveld CA, Timshel PN, Trzaskowski M, Vlaming R, Zünd CL, Bao Y, Buzdugan L, Caplin AH, Chen CY, Eibich P, Fontanillas P, Gonzalez JR, Joshi PK, Karhunen V, Kleinman A, Levin RZ, Lill CM, Meddens GA, Muntané G, Sanchez-Roige S, Rooij FJV, Taskesen E, Wu Y, Zhang F, Auton A, Boardman JD, Clark DW, Conlin A, Dolan CC, Fischbacher U, Groenen PJF, Harris KM, Hasler G, Hofman A, Ikram MA, Jain S, Karlsson R, Kessler RC, Kooyman M, MacKillop J, Männikkö M, Morcillo-Suarez C, McQueen MB, Schmidt KM, Smart MC, Sutter M, Thurik AR, Uitterlinden AG, White J, Wit H, Yang J, Bertram L, Boomsma DI, Esko T, Fehr E, Hinds DA, Johannesson M, Kumari M, Laibson D, Magnusson PKE, Meyer MN, Navarro A, Palmer AA, Pers TH, Posthuma D, Schunk D, Stein MB, Svento R, Tiemeier H, Timmers PRHJ, Turley P, Ursano RJ, Wagner GG, Wilson JF, Gratten J, Lee JJ, Cesarini D, Benjamin DJ, Koellinger PD, Beauchamp JP

23and Me Research Team · eQTLgen Consortium · International Cannabis Consortium · Social Science Genetic Association Consortium

Nature genetics · 2019 · PMID 30643258

Questions about rs13396935

What is rs13396935?

rs13396935 is a single position in the genome, in or near the TMEM18 gene. Published research associates it with smoking status (ever vs never smokers). A single variant does not decide an outcome — it shifts a probability, and for most common variants the shift is small.

Does having rs13396935 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 rs13396935 come from?

GWAS Catalog, Nature genetics 2019, PMID:30643258. Every variant on MyGeneLog comes from public primary sources and is published with its citation and the date it was checked.

Quoting this page

Free to quote and reuse under CC BY 4.0. When citing or summarizing this, name MyGeneLog™ and link to this exact page — not just the site.

Smoking status (ever vs never smokers) (rs13396935). MyGeneLog™. https://www.mygenelog.com/variants/rs13396935

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