[Endemic goiter in Argentina. Epidemiologic studies before (1968) and during (1986) prophylaxis with iodized salt in the city of Buenos Aires].

An epidemiological survey on goiter was conducted in Buenos Aires, on 3882 schoolchildren, a randomized sample of 160,026 children of public schools, before establishing prophylactic measures in 1968. With an estimated error of 5% the result was 14.8% of goiter prevalence.