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. 2024 Jul 15;14:16303. doi: 10.1038/s41598-024-67072-z

Table 2.

Repeated measure ANCOVA analysis for the SARA and FARS II score changes.

DF Sum Square Mean Square F value P Post-Hoc
SARA score change
Residuals 519.9 3.7
Follow-up (months) 4 38.8 9.7 2.595 0.039* 3 M > baseline*, 3 M > 1 M**, 6 M > 1 M*
SARA score at baseline 1 2204.0 2204.0 589.207 < 0.001**
Age (years) 1 17.2 17.2 4.601 0.034*
Male sex 1 7.8 7.8 2.077 0.152
Type 5 49.3 9.9 2.636 0.026* SCA7 > SCA6**
Trinucleotide repeat length (long allele) 1 3.8 3.8 1.009 0.317
Duration of disease (years) 1 10.4 10.4 2.786 0.097
Dosage of nilotinib (mg) 1 11.5 11.5 3.074 0.082
FARS II score change
Residuals 1029.1 7.2
Follow-up (months) 4 75.7 18.9 2.612 0.038*

1 M, 3 M > Baseline**

6 M, 12 M > Baseline*

SARA score at baseline 1 1754.0 1754.0 242.036 < 0.001**
Age (years) 1 58.0 58.0 8.008 0.005**
Male sex 1 0.2 0.2 0.028 0.867
Type 5 89.9 18.0 2.481 0.035* SCA6 > SCA2**, SCA6 > SCA3*
Trinucleotide repeat length (long allele) 1 0.3 0.3 0.044 0.835
Duration of disease (years) 1 1.6 1.6 0.214 0.644
Dosage of nilotinib (mg) 1 1.4 1.4 0.196 0.658

ANCOVA analysis of covariance, DF degree of freedom, SARA scale for the assessment and rating of ataxia, FARS Rating scale for Friedreich’s ataxia, SCA spinocerebellar ataxia.

*P < 0.05 and **P < 0.01.