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the claim

Gilles de la Tourette syndrome is a rare condition.

the verdict
REFUTED
the evidence says no
Recorded sources
0 sources for · 2 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Gilles de la Tourette syndrome is a rare condition?

No. Epidemiological studies indicate that Tourette syndrome is not a rare condition, with prevalence estimates in school-age children falling between 0.5% and 0.7%.

Verdict: REFUTED · 0 sources for, 2 against · Last checked

The analysis

The claim states that Gilles de la Tourette syndrome is a rare condition. However, epidemiological literature, such as prevalence studies estimating 5-7 cases per 1,000 children and large-scale registry data describing it as a common childhood-onset neurodevelopmental condition, contradicts this assertion. Therefore, the claim is refuted.

Evidence against · 2
The Prevalence of Tourette Syndrome and its Relationship to Clinical Features
2013
Get citation
Scahill, L., Dalsgaard, S., & Bradbury, K. (2013). The Prevalence of Tourette Syndrome and its Relationship to Clinical Features. doi.org. https://doi.org/10.1093/med/9780199796267.003.0006

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More against · 1
The Prevalence of Tic Disorders in Poland: Regional and Sex Differences.
2026
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K, Ś., N, S., AJ, O., K, T., DJ, v. W., & KR, M. (2026). The Prevalence of Tic Disorders in Poland: Regional and Sex Differences.. doi.org. https://doi.org/10.5334/tohm.1165

What does the evidence say?

The claim states that Gilles de la Tourette syndrome is a rare condition. However, epidemiological literature, such as prevalence studies estimating 5-7 cases per 1,000 children and large-scale registry data describing it as a common childhood-onset neurodevelopmental condition, contradicts this assertion. Therefore, the claim is refuted.

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