Verbal autopsy: a necessary solution for the paucity of mortality data in the less-developed countries

Although global disease burden can best be described using accurate and reliable mortality data, many investigators rely solely on death certificates, despite the fact that many of the less-developed countries (LDCs) do not have mandated death certifications. In many of these LDCs, particularly in remote areas, verbal autopsy (VA) may be a surrogate for death certificates in ascertaining causes of death. The main benefit of using VA stems from the fact that it is based on laypersons' observations of the diseased, and therefore does not require medical training. Because of human and economic resource constraints in many LDCs, investments in infrastructures for collecting mortality data needed for the planning, monitoring, and evaluation of health are unlikely in the immediate future. Investment in rural health workers who are trained in VA may prove useful in increasing the quality and availability of mortality data from many LDCs. Rural health workers are essentially 'foot doctors' in many of these countries, whose familiarity with nooks and crannies of villages would be beneficial in the collection of needed mortality data. There is a need for international development agencies, such as the World Health Organization, to devote resources for training rural health workers in order to increase the availability of mortality data for describing worldwide disease burdens.