[Epidemiology of leukemia in children in Valencia (author's transl)]

The incidence of leukemia in Valencia in children zero-seven years old, during a period of ten years (1970-1979), is studied. One hundred and fifty five cases of leukemia were diagnosed on five hospitals during this time. This makes an incidence of 3.5 cases per 100,000 children and years. A light predominance of males was observed and the peak age of presentation was between two and five years. Acute lymphoblastic leukemia was the more frequent variety, followed a big distance by acute myeloid. The relation with other factors, as chromosome abnormalities, parents age, socioeconomic level, are also studied.