PubMed · 91068
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A J Hulse, D B Grant, D Jackson, B E Clayton. 1979-11-03. Screening for congenital hypothyroidism.. https://doi.org/10.1016/s0140-6736(79)92671-0
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The actual worldwide incidence of congenital hypothyroidism (CH) is based on the results of screening in parts of the world where screening is mandatory, i.e. most of Europe, USA, Canada, Cuba, Australia, New Zealand and Japan. In other parts of the world, some indications are given by the results of pilot studies. In Europe, mean overall incidence (1985-1990) for the countries included in our inquiry is 1/3801--in each country for the same period: Austria 1/3,930, Belgium 1/3,750, Czechoslovakia 1/6,037, Denmark 1/3,777, Finland 1/3,969, France 1/4,132, FRG 1/3,827, Greece 1/3,314, Hungary 1/5,632, Israel 1/3,152, Italy 1/3,150, The Netherlands 1/3,723, Norway 1/3,069, Portugal 1/3,139, Spain 1/3,216, Switzerland 1/3,913, UK 1/3,398 and Turkey (pilot study 1989-1992) 1/2,943. In comparison, the figures for the USA for the whole country are similar for the mean overall incidence (1988-1990): 1/4,119. But large variations exist between the states, the reasons of which are perhaps related either to technical problems or to the ethnic background in each state. In Canada and Japan, modifications of screening procedures have led to similar figures for the last years in our possess, Canada (1986-1988) 1/3,884 and Japan (1990) 1/3,856. The figures (mean overall incidence) for Cuba (1987-1991) 1/2,325, for Australia (1985-1990) 1/1/3,331 and for New Zealand (1987-1990) 1/4,496 are quite comparable. So in these countries where the screening is established, no great variations are noted as in certain parts of the world with pilot studies: Argentine (Buenos Aires; 1985-1990) 1/4,407, Chile (1991-1992) 1/2,514, Brazil (Porto Alegre; 1987-1991) 1/4,429.(ABSTRACT TRUNCATED AT 250 WORDS)
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The results of five years activity of the National Register of children with Congenital Hypothyroidism (NRCH) have been evaluated. NRCH was established in Italy in 1987, as a pilot project of Health Ministry. All Italian Centers in charge of the screening, treatment and follow-up of CH are involved in the program. The results have provided further epidemiological informations about CH in Italy and have evidenced some aspects in the screening organization which had to be improved. Discussion of Register data in annual meetings has recently allowed to obtain an improvement especially for the beginning of treatment and the used dose of therapy.