Ageing and depression are associated with disability and have significant consequences for health systems in many other developing countries. Depression prevalence figures among the elderly are scarce in developing countries.
Unidad de Investigación Epidemiológica y en Servicios de Salud, Area Envejecimiento, Centro Médico Nacional Siglo XXI, Instituto Mexicano del Seguro Social, Mexico.carmen.garcia@imss.gob.mx