Table 1.

Subject characteristics.

Healthy control subjects				FRDA subjects
No.	Gender	Age at time of study	FXN mRNA expression (±std dev)	No.	Gender	Age at time of study	Age of disease onset	Number of GAA repeats in the less expanded allele	Total ICARS SCORE	FXN mRNA expression (±std dev)
1	F	19	1 ± 0.11	1	F	13	9	830	16	0.1 ± 0.01
2	M	19	1.25 ± 0.23	2	M	29	16	360	29	0.16 ± 0.02
3	M	19	2.35 ± 0.49	3	M	24	11	625	59	0.17 ± 0.03
4	F	19	0.9 ± 0.15	4	F	18	8	621	10	0.26 ± 0.02
5	F	19	1.24 ± 0.37	5	F	27	3	560	39	0.17 ± 0.02
6	F	26	1.24 ± 0.06	6	M	23	8	760	67	0.17 ± 0.05
7	F	23	1.23 ± 0.06	7	F	16	12	600	19	0.3 ± 0.01

Note: FXN mRNA expression was arbitrarily set to 1 in control subject #1, then all FXN mRNA expression values were referred to that sample.