[Childhood anemia in populations residing at different geographical altitudes of Arequipa, Peru: A descriptive and retrospective study].

Objective: To identify the characteristics of anemia in children living at different geographical altitude in the Arequipa Region of Peru.

Methods: We did a descriptive and retrospective study. The population consisted of 106 499 children under five years of age living in the Arequipa Region at different geographical altitude and receiving care by the Ministry of Health of Arequipa.