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[Epidemiology of mental deficiency. The Safor study (II): age at detection, person making the diagnosis, medical studies].

As part of an epidemiological study on Mental Deficiency which was carried out in an area of the region of Valencia, a study has been made of the age when Mental Deficiency can be detected, who made this discovery, and which children have been the object of a medical study. 12% of the cases were detected at birth, 16% before the age of 3, 7% at 3, and 64% after the age of 4. In 16% of the cases the deficiency was detected by the family, in 20% of the cases a doctor and a psychologist in 62% of the cases. A medical study to discovered the causes of the Mental Deficiency was only carried out in 44% of the cases.