Descriptive Stats Flashcards
0
Q
What is prevalence?
A
No. With disease at particular time / no. in population at that time
1
Q
What is proportion?
A
No.with disease / total no.
2
Q
What is risk (cumulative incidence)?
A
No. Of new cases of disease in period / no. Initially disease free
3
Q
What is incidence rate?
A
No. Of new cases of disease / total no. Disease free at outset X time interval
Nb mortality rate is incidence where event is death
4
Q
Equation for prevalence
A
Prevalence = incidence X avg duration of disease
