Lecture 3- types of epidemiology studies Flashcards
What does study design depend on
What are the 2 categories of studies
What is hypothesis generating
What questions do descriptive studies address
where do we get data from
what countries have much more thorough and detailed info available
what do A lot of studies also now collect info on
What is included on census info
what are the sources of data for disease notification
what is record linkage
what are the Other sources of routine data and what are the examples
what does poor data lead to
what questions must we consider to prevent flawed understanding
what type of study is descriptive
what is an ecological study and what is the advantage
what are the types of ecological studies
why do ecological studies use a correlation coefficient
what is the r
what are the advantages of ecological studies
what is the disadvantages of ecological studies
what are cross sectional studies
what are cross sectional studies also known as
what are the advantages of cross-sectional studies
what are the disadvantages of cross sectionals studies
what does every epidemiology study have
what Is case control
Compares a group who have a disease (cases) with an otherwise similar group who do not (controls). One observation point: cases + controls are selected + data are collected about past exposures
what is a cohort
All subjects are followed-up over a period of time (years), during which some go on to develop disease .The rate of development of disease is then compared between the exposed and non-exposed sub-groups. Enables identifications of association between disease incidence and exposure
what is a randomised control trial
Involves intervention or experimentation by changing one variable (exposure) in one or more groups and measure disease/health outcomes in the groups
What are resident populations
what effects resident populations
how do we calculate death rate
what does it mean if the death rates are similar
