Frequency association
10 important questions on Frequency association
What is incidence? Prevalence?
Existing cases at a point or period of time.
What are point/period/lifetime prevalence?
period: over a specific period of time
Lifetime: number of individuals who have had a disease in their life, compared to total number of individuals
What is the difference between absolute risk and attributable risk?
Attributable risk- Risk for exposed persons- risk for non-exposed persons. This gives the incidence of a risk attributable to exposure
- Higher grades + faster learning
- Never study anything twice
- 100% sure, 100% understanding
When are the RR or OR signigicant?
What if the 95% ci for RR/OR is wide?
When is the OR an estimate of RR?
What three main sources of bias?
information bias
confounding
(effect modification)
When is a variable a confounder?
Associated with disease
Not part of the causal chain from exposure to disease
What is effect modification?
How do you calculate R squared?
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding