Epidemiology Assignment: Questions and Answers

Running head: EPIDEMIOLOGY 1
Epidemiology
Name
Institution

EPIDEMIOLOGY 2
Epidemiology
Assignment 1
1. Epidemiologists are interested in learning about:
All of the above
2. Diseases that are always present in a community, usually at a
relatively low constant
frequency are classified as having an endemic pattern
3. Which of the following terms best applies to this situation? Epidemic
4. Research Question
What is the difference in daily calorie intake between male and female medical students of
Northern Ontario School of Medicine?
5. Causal Diagram

EPIDEMIOLOGY 3
The exposure in this case is the carbohydrates and the outcome is obesity. When consumption of
carbohydrates is high then the chances of being obese also increase.
Physical activity is associated with obesity such that engaging in physical activity reduces the
risks associated with obesity.
Gender is associated with the amount of food consumption which is also related to obesity.
Level of carbohydrates intake may also determine the level of physical activity.
6. Temporal relationship means that the exposure must occur before the outcome for
causality to be established.
7. Criteria not required to define confounder
The confounder is the result of an error
8. Which of the following causes of death is more likely to lead to a higher proportion of
years of potential life lost in Canada?
Cerebrovascular diseases (stroke)
9. Incidence rate
Total number of new active cases=2+ 16+64
¿ 82
Person-months of observation¿ ( 250−50 )=2 00
IR= 82
200 =0.41