Friedreich ataxia in Norway – an epidemiological, molecular and clinical study

Table 3 Distribution of the frequencies of the GAA repeat sizes in normal alleles in 6 different populations

Normal alleles		Norwegian (present study)	Finnish [43]		Cuban [65]	Indian [66]	Caucasian [67]	French [26]
			North	South
GAA repeat sizes	5-12	83.5 %	83 %	79.5 %	89.1 %	94.1 %	80 %	83 %
	13-34	16.5 %	17 %	20.5 %	10.9 %	5.9 %	20 %	17 %
Alleles range		6-34	6-27	7-27	5-31	7-16	5-23	7-34

ISSN: 1750-1172