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_________ is a measure of the frequency of occurrence of a phenomenon in a defined
population, expressed in change per unit time. Rate
The two measures of frequency are: -Prevalence
-Incidence
The ____________ is the proportion of a specified population that is affected by the outcome of
interest at a given time. Prevalence proportion
________________ is the number of cases of the outcome of interest at a given time, divided by
the total specified population at the time of outcome ascertainment. Point prevalence
______________ is the number of cases of a disease or other outcome during a specified period
of time, divided by (usually) the total specified population at the mid-point of the time period.
Period prevalence
, Prevalence is affected by: -number of new cases
-duration of health-related state
-rate of recovery and death
________ is the number of new events occurring in a specified period in a defined population.
Incidence
_________ and ____________ are the two measures of incidence. Cumulative incidence
and incidence density
___________ is the proportion of a fixed population experiencing a new event during a specified
time period. Cumulative incidence
____________ is the incidence proportion of becoming afflicted with a condition during an
epidemic period. Attack rate
______________ is the proportion of people, among those who develop a disease, who then
proceed to die from the disease. Case fatality rate