Section 1

Question 1

Attack Rate

Answer 1

number of people ill in a time period / number of people at risk in that time period
(usually expressed as per 1,000 ppl)

Question 2

Confounding

Answer 2

“guilt by association” – a variable behind the curtain that is responsible for the appearance of culpability for another variable

Question 3

Effect Modification

Answer 3

The phenomenon of one variable’s effect being dependent on the presence or absence of a second variable

Question 4

Epidemic

Answer 4

An epidemic occurs when there are significantly more cases of the same disease than past experience would have predicted for that place, at that time, for that population.

Question 5

Disease in the individual may be considered the outcome of what 3 factors?

Answer 5

Agent, Host, and Environment

Question 6

Cases of a disease may be classified according to what 3 categories?

Answer 6

1. Time, including rate of onset and period of observation
2. Place, which includes dwelling and workplace
3. Person(al characteristics), which include age, sex, and occupation