Table 3

Demographic information for whole blood and dried blood spot samples collected from volunteers for frataxin protein analysis by Luminex assay

Demographic information by collected sample typeSex (M/F)Mean age/ age of onsetMean GAA1/GAA2
Dipstick assay
 Control (n=17)12/542.2/– (n=17)–/–
 Carrier (n=54)24/3047.7/– (n=53)–/–
 cFRDA (n=71)40/3124.2/11.3 (n=71/71)658.5/920.0 (n=66/66)
 LOFA (n=15)9/657.5/35.7 (n=15/15)295.7/757.3 (n=14/15)
 pFRDA (n=4)3/111.5/7.8 (n=4)–/844 (n=3)
Luminex assay
 Control (n=23)15/843.0/– (n=23)–/–
 Carrier (n=76)35/4147.8/– (n=68)–/–
 cFRDA (n=117)61/5523.9/11.3 (n=117/115)643.6/921.2 (n=112/109)
 LOFA (n=20)10/1056.6/37.4 (n=20/20)216.3/791.8 (n=19/20)
 pFRDA (n=4)3/111.5/7.8 (n=4)–/844 (n=3)
  • cFRDA, classic Friedreich ataxia; LOFA, late-onset Friedreich ataxia; pFRDA: point mutation Friedreich ataxia.