Consider the Data Table Showing Epidemiology Data for 25 Individuals

question 20

Multiple Choice

Consider the data table showing epidemiology data for 25 individuals with a disease and 25 healthy comparison individuals. Their deaths are recorded over a period of 12 months.
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$\begin{array}{c}\underline { \text { Diseased } } \quad \quad \quad \quad \quad \quad \quad \quad\underline { \text { Healthy}}\\\begin{array}{cccc}\text { Time } & \text { \# at risk } & \text { Deaths } & \text { \# at risk } & \text { Deaths } \\2 & 25 & 1 & 25 & 2 \\4 & 24 & 3 & 23 & 5 \\6 & 21 & 1 & 18 & 4 \\8 & 20 & 2 & 13 & 3 \\10 & 18 & 0 & 10 & 1 \\12 & 18 & 1 & 9 & 2\end{array}\end{array}$
-Based on the ?² value from a test of the hazard ratio for the disease group relative to the healthy group, what is our conclusion?

• A) P < 0.05, the survival curves are the same.
• B) P < 0.05, the survival curves differ from each other.
• C) P > 0.05, the survival curves are the same.
• D) P > 0.05, the survival curves differ from each other.

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Definitions:

Remote Suburbs

Areas that are situated on the outskirts of a city, often characterized by lower population density and greater distance from urban centers.

Exurbs

Areas situated beyond the suburbs of a city, typically characterized by lower density of population and often sought for a more rural lifestyle.

Micropolitan Statistical Area

An urban area in the United States defined by the Office of Management and Budget, based on census data, that has at least one urban cluster of at least 10,000 but less than 50,000 population.

Urban Cluster

A densely populated area that has a total population of less than 50,000 people.