Theories of Disease

Theories of Disease

Theories of Disease A disorder of structure or function in a human, animal, or plant, especially one that produces specific signs and symptoms or that affects a specific location and is not simply a direct result of physical injury is called a disease. It is a particular abnormal, pathological condition that affects part or all of … Read moreTheories of Disease

Branches of Epidemiology

Branches of Epidemiology

Epidemiology is the study of how the disease is distributed in populations and the factors that influence or determine this distribution. It is defined as “the study of the distribution and determinants of health-related states or events in specified populations and the application of this study to control of health problems.” Information from epidemiologic studies … Read moreBranches of Epidemiology

Epidemiology- History, Objectives and Types

Epidemiology- History, Objectives and Types

Epidemiology- History, Objectives and Types Epidemiology, as defined by Last, is “the study of the distribution and determinants of health-related states or events in specified populations, and the application of this study to the prevention and control of health problems”. Epidemiologists are concerned not only with death, illness, and disability, but also with more positive … Read moreEpidemiology- History, Objectives and Types

Case-Control Study

Case-Control Study

Case-Control Study A case-control study (also known as a case-referent study) is a type of observational study in which two existing groups differing in outcome are identified and compared on the basis of some supposed causal attribute. It is designed to help determine if an exposure is associated with an outcome (i.e., disease or condition … Read moreCase-Control Study