-Establish whether there is an associationbetween a factor or characteristic and outcome (disease)
-Make inferencesregarding the association to generate hypotheses
-Testthe hypotheses with study
-Develop or evaluate interventionstrategies
The shift from high death rates to low death rates in a population as a result of modern medical and sanitary developments.
a type of illness or disease that remains common because an effective method of prevention or cure has not yet been discovered.
occurs when a group of people is exposed to a single common source of infection at a single place and time. There is no significant transmission between individuals. cf. continuous and intermittent epidemics.
Actions that change overall background conditions to prevent some unwanted event or circumstance, such as injury, disease, or abuse
characteristics, environmental factors, or behaviors that PROMOTE a persons health, safety, and well being
used to represent the large quantities of material recovered in excavations and surveys
an illness or disease for which the key contributing factors are known but specific methods of control have not been effectively implemented.
a circumstance that results in the choice of persons for a group because of their health status or other characteristic.
Aspects of society and the social environment that impact on health, such as poverty, early life experiences, social networks and support.
The minimum number of cases that would support the conclusion that an epidemic was coming.