How does the prevalence of tardive dyskinesia (TD) vary among racial and ethnic groups?

Updated: Oct 17, 2018
  • Author: James Robert Brasic, MD, MPH; Chief Editor: Selim R Benbadis, MD  more...
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TD occurs in persons of every race. [30] Studies in different populations have identified overall prevalences ranging from 1% to 65%. Africans and African Americans appear to be especially vulnerable to TD after exposure to low doses of neuroleptics for short durations.

However, it is difficult to draw any firm conclusions from these findings, because the investigators conducted their studies in different settings. A number of other variables, such as therapeutic approaches, methodologic inconsistencies, diet, weather, and varied assessments, may also contribute to the differences reported in various racial groups.

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