A Report on the Incidence of phenylketonuria
To f i nd the. inc idence of Phenylketonuria(PKU) i n Teheran a study was conduc ted i n di ffe rent hospitals of Te heran f or a period of Six Years (1974-1980) by screening 8633 neona t e s wit h Guthrie-test . (4) . Among t hese neona tes ,seven had minor hyperphenylalaninemia(5 with 6 mg% and 2 with 8 mg%) . There was only one ca se with definite hyperphenylalaninemia(more t han 20 mg%) .