[Epidemiologic comments on hypertonic dehydration in Madrid (author's transl)].

The epidemiologic factors are studied in 584 cases of Hypertonic Dehydration (H.D.) admitted to the Children's Clinic "La Paz" over a period of 5 years. The overall monthly mean (MMT) resulted in 9.75 children a month with a standard deviation of +/- 2.1. The overall monthly evolution is analysed according to the sex, the seasonal incidence, as well as the more relevant etiologic factors: Concentrated diet, diarrhoea, vomiting, respiratory pathology and fever. The epidemiologic peculiarities are discussed according to age.