Incidence and Prevalence Flashcards
1
Q
What is incidence?
A
The number of new cases per population in a given time period.
2
Q
What is prevalance?
A
The total number of caes per population at a particular point in time.
3
Q
What is the relationship between prevalence, incidence and duration of a condition
(mathematical formula)
A
Prevalence = Incidence x Duration of condition.
4
Q
In a chronic disease, what is higher, incidence or prevalence?
A
Prevalence
5
Q
In acute diseases what is higher, prevalence or incidence?
A
They are usually similar.
BUT for very acute diseases (common cold, Incidence > Prevalence.
