EEG abnormalities, malnutrition, parasitism and goitre: a study of schoolchildren in Ecuador

We report on data collected in a sample of 194 schoolchildren (9–13 years of age) residing in a mountainous community in Ecuador. This study was part of an ongoing epidemiological inquiry into the prevalence of parasitism, malnutrition, neurocysticercosis, goitre, iodine levels and EEG abnormalities, and the relationships among these factors. Data were obtained by a local medical team supported by specialized personnel. The results showed that 34% of the EEG tracings were abnormal, with higher rates among girls. The best fitted log-linear model to explain the results was the combination of EEG status, parasite infection, goitre and gender. The best predictor of EEG abnormalities was found to be a diagnosis of goitre.