There have been calls recently for a major international effort to collect epidemiological information in developing countries. One approach to a World Health Survey is considered, namely single-round retrospective interview surveys. Surveys can contribute to the improvement of national health...

Many developing countries are trying to improve the routine collection of health information by strengthening surveys, censuses, and registration systems. At the international level, too, efforts are underway to provide information on health and health interventions, including statistical...

In most developing countries, data collection methods in the civil registration system and health services are woefully inadequate and methods for adjusting them apply only at the national level. The authors argue that the best way to collect data on adult mortality is probably to combine sample...