The aim of this study was to determine the relationship between auditory capacity and urinary iodine, taking into account thyroid volume and function, in a population of school-age children. Audiometry was carried out in 150 children (ages 6-14 years), together with measurements of thyroid volume, thyrotropin (TSH), free T3, free T4, thyroglobulin, antiperoxidase and anti-TSH receptor antibodies, as well as iodine in a casual urine sample. Children with a TSH >5 microU/mL were excluded from the study. In the children with palpable goiter, there was an inverse relation between the auditory threshold at all frequencies and ioduria. Children with thyroglobulin values >10 ng/mL had a higher auditory threshold at all frequencies. In the children with palpable goiter and ioduria <100 microg/L, the levels of thyroglobulin and ioduria and the age accounted for 75% of the decibel (dB) variance at 2000 (Hertz), with similar results at other frequencies. The children with a thyroid sized at the >95th percentile had an odds ratio of 3.86 (95% confidence interval: 2.59-5.10) of having a threshold >20 dB. The results warn that iodine prophylaxis is needed to prevent not only goiter but also other iodine-deficiency disorders, such as involvement of the auditory threshold in school-age children.
Treatment with growth hormone in children is a very effective promotor of growth. The psychosocial environment of children may influence the results of this treatment. It has been shown that there is a clear relationship between the knowledge and understanding a child has of the treatment and the degree of compliance and acceptance. We have studied 90 children treated with growth hormone who filled in a questionnaire in order to know the knowledge and acceptance of their treatment. The scores for acceptance were significantly higher than for knowledge (p < 0.00001), without correlations between the two variables. The higher marks were achieved by children who had attended an educational camp. A serious lack of knowledge about the aspects directly related with the injection system was noted. We advise to design a suitable educational program for these patients.
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