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. 2015 Feb 17;10(2):e0117488. doi: 10.1371/journal.pone.0117488

Table 1. Clinical presentations of SCA3/MJD patients.

Clinical features	Genotypes
Clinical features	G/G	G/A	A/A
Age at onset Mean ± SD (range) ^a
Age at onset Mean ± SD (range) ^a	37.70 ± 9.90 (17–59)	36.19 ± 9.84 (14–57)	34.09 ± 9.45 (15–53)
Duration Mean ± SD (range)
Duration Mean ± SD (range)	10.16 ± 3.87 (5–25)	11.77 ± 5.14 (5–25)	11.95 ± 4.30 (7–20)
Ataxia symptoms, No (%)	55 (100%)	83 (100%)	32 (100%)
Pyramidal sign	15 (8.82%)	22 (12.94%)	14 (8.23%)
Extrapyramidal signs	10 (5.88%)	17 (10.00%)	5 (2.94%)

a. Before adjusting for the mean size of expanded CAG repeats in the patients