Because health III (broadly defined as well-being) is influenced by a wide array of socio-demographic characteristics, relevant variables range from the proportion of residents of a given age group to the overall life expectancy of the neighborhood. Medical interventions aimed at improving the health of a community range from improving access to medical care to public health communications campaigns. Recent research efforts have focused on how the built environment and socio-economic status affect health.
In Africa, community health is studied in three broad categories:
Success of community health programmes rely on the transfer of information from health professionals to the general public using one-to-one or one to many communication (Mass communication). The latest shift is toward Health marketing with the centers for disease control (CDC) taking the lead.