Table 1. Incidence rates of PKU in different populations/countries.

Ethnic group/population	Incidence of PKU	Reference
Sicily	1:2,700	Guldberg et al. [1993] (12)
Turkey	1:4,200	Ozalp et al. [2001] (13)
Ireland	1:4,500	Zschocke et al. [1997] (14)
Catalonia	1:6,600	Mallolas et al. [1999] (15)
Israel	1:8,200 non-Jews; 1:12,500 Jews	Bercovich et al. [2008] (16)
Caucasian	1:10,000	Zschocke [2003] (11)
Northern China	1:11,000	Song et al. [2005] (17)
Cuba	1:20,000	Desviat et al. [2001] (18)
Korea	1:41,000	Lee et al. [2004] (19)
Taiwan	1:55,000	Chien et al. [2004] (20)
Japan	1:80,500	Kimura et al. [2001] (21)
Finland	1:100,000	Guldberg et al. [1995] (22)

PKU, phenylketonuria.