questions and answers with solutions
2025
Epidemiology is the _____ ______ of PH - ANSWER core science
What are the 3 jobs of epidemiology? - ANSWER - ID trends in disease (reporting "notifiable"
diseases)
- Investigate causes of disease
-evaluate interventions
Biostatistics is a ________ tool - ANSWER methodological
Biostatistics helps _____ data into information about - ANSWER translate data into info about
cause/effect, health risks, and interventions
Formal definition of epi:
The study of the _____ and ______ of health and disease-related states in _______ + the _____
of this study to control health problems - ANSWER distribution and determinants of health in
populations
application of the study to control problems
What are the 3 standard dimensions used to track disease occurrences/health events? -
ANSWER place
time
person
, Another way to remember is that patterns of disease looks at the 3W's : - ANSWER who (is
getting disease)
where (is disease occurring)
When (did they get the disease)
From the 3 W's epidemiologists can infer _____ the disease is occurring - ANSWER why
What is meant by place? - ANSWER physical/bio/social environments
What is meant by person? - ANSWER age, sex, race, occupation, marital status
What is meant by time? - ANSWER calendar months/duration
So in definition of epidemiology
looking at distribution means--> - ANSWER 3W's
Looking at determinants means--> - ANSWER looking at Epi Triad
Looking at populations means--> - ANSWER considering characteristics of the affected group of
people (who share common characteristics)
What are the 4 main reasons to study epidemiology? - ANSWER - assess burden of disease in
populations
- make meaningful comparisons of disease frequency
- ID modifiable causes of disease