A major scientific challenge for the next few decades is to understand the interaction
between genetic susceptibility and environmental factors in the aetiology of chronic …

Increases in international funding for health have been accompanied by accelerating
demand for more and better statistics, which are needed to track performance and ensure …

It is generally assumed by the donor community that the targeted funding of global, regional
or cross-border surveillance programmes is an efficient way to support resource-poor …

Longitudinal demographic surveillance systems (DSSs) in selected populations can provide
important information in situations where routine health information is incomplete or absent …

Background Virtually all low-and middle-income countries are undergoing an
epidemiological transition whose progression is more varied than experienced in high …

Crude rates such as the crude death rate are functions of both the age-specific rates and the
age composition of a population. However, differences in the age structure between two …