FMR1 and fragile X-associated tremor/ataxia syndrome: While the Spearman correlation between CGG repeat size and FMR1 mRNA levels (ρ = 0.64) was significant (p = 0.019) in the present sample of 12 FXTAS patients, with the scatterplot showing a close linear relationship, it was negligible in a sample of four non-FXTAS individuals – the result being inconclusive because of small sample size.