rs1843809(T;T)

Most common genotype worldwide

Magnitude
1.0Minor
Repute
Not rated
Frequency
64%Average of 11 populations
On SNPedia
rs1843809(T;T)
Gene
TPH2

Frequency

Share of people with T;T in each HapMap population.

  • Japanese (Tokyo)96%
  • Han Chinese (Beijing)87%
  • Chinese (Denver)86%
  • Gujarati Indian80%
  • European ancestry (Utah)80%
  • Mexican ancestry (Los Angeles)67%
  • Tuscan67%
  • African ancestry (Southwest US)40%
  • Luhya (Kenya)37%
  • Yoruba (Nigeria)33%
  • Maasai (Kenya)32%

Other genotypes of rs1843809

  1. G;GMost notableGoodslightly decreased risk for ADHDMinor · 1.57% of people

All about rs1843809

Source and license

Adapted from rs1843809(T;T) on SNPedia, using a snapshot taken October 16, 2026. SNPedia content is shared under CC BY-NC-SA 3.0 US, and this page is shared under the same license.

SNPedia is a community-edited wiki. Its entries can be incomplete, out of date or wrong, and nothing here is a diagnosis or medical advice. Magnitude is a community rating of how interesting a genotype is, not a risk score.