Table 3.

Prevalence of mitochondrial disorders in childhood in different populations

Study population	Prevalence	95% CI, per 100,000	Reference
Northern Finland children <18 years	1:5,634	not calculated	Uusimaa et al., 2000
Western Sweden children <16 years	1:21,000	2.8–7.6	Darin et al., 2001
Victorian Australia children <16 years	1:20,000	4.0–6.2	Skladal et al., 2003
Estonia life-birth prevalence	1:20,764	1.5–11.2	current study