What are the Odds?
Risk-y business
AB-solutely
What does it mean?
100

The letter used to notate the probability of an event.

What is p?

100

The relative risk measure calculates a ratio of this in exposed vs. unexposed groups.

What is incidence?

100

This absolute risk measure is the difference in incidence in those exposed vs. unexposed.

What is risk difference / attributable risk?

100

Numeric value for no association between exposure and outcome.

What is 1?

200

ORs are used in this type of retrospective study.

What is a case-control study?

200

RRs can be used in this type of experimental study.

What is an RCT?

200

The attributable risk, where the incidence of MI is 5/1000 PY in smokers and 1/1000 PY in non-smokers.

What is 4?
200

Numeric representation for a negative association.

What is <1?

300

Using probability (chance) phrasing, this is the denominator in calculating an odds ratio.

What is the chance of something not happening?

Or

What is odds of exposure of no disease group?

300

This is the denominator when calculating RR.

What is the incidence in unexposed?

300

Indicates the ______ of risk in a group of persons exposed to an important factor.

What is magnitude?

300

Numeric representation for a positive association.

What is >1?

400

This is the formula in calculating OR.

What is A*D / B*C?

OR

What is (A/B) / (C/D)?

400

This is the formula for calculating RR.

What is (a/(a+b)) / (c/(c+d))?

400

The absolute measure characterizes the ______ in outcome frequency in exposed vs. unexposed groups.

What is difference?

400

Stronger associations are _______ from/to 1.

What is farther?

500

This is the OR where A=70, B=100, C=50, and D=140.

What is 1.96?

500

This is the RR where A=84, B=2916, C=87, and D=4913.

What is 1.61?

500

Demonstrates how many cases could be reduced if we intervened on this group.

What is exposed/exposure group?

500

Weaker associations are _______ from/to 1.

What is closer?

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