Epidemiologists Tried to Investigate the Role of Factor Y in the Exposure-Disease

question 4

Multiple Choice

Epidemiologists tried to investigate the role of factor Y in the exposure-disease relationship.They developed three tables to show the exposure-disease relationship based on the status of factor Y.In this analysis,what is the odds ratio in the overall population? $\text { Overall }$
$\begin{array}{|l|l|l|}\hline & \text { Case } & \text { Control } \\\hline \text { Exposed } & 1,000 & 500 \\\hline \text { Unexposed } & 200 & 500\\\hline\end{array}$

$\text { Factor } Y \text { present }$
$\begin{array}{|l|l|l|}\hline & \text { Case } & \text { Control } \\\hline \text { Exposed } & 800 & 250 \\\hline \text { Unexposed } & 100 & 250 \\\hline\end{array}$

$\text { Factor } Y \text { absent }$
$\begin{array}{|l|l|l|}\hline & \text { Case } & \text { Control } \\\hline \text { Exposed } & 200 & 250 \\\hline \text { Unexposed } & 100 & 250 \\\hline\end{array}$

• A) 0.5
• B) 1.0
• C) 2.0
• D) 5.0
• E) 8.0

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Definitions:

ECT

Electroconvulsive Therapy is a psychiatric treatment in which seizures are electrically induced in patients to provide relief from severe mental disorders.

Insight Therapies

A range of psychotherapeutic techniques aimed at helping clients understand the root causes of their psychological issues.

Behavior Modification

Behavior Modification is a therapeutic approach which involves changing undesirable behaviors through reinforcement, punishments, and other learning principles.

Gestalt Therapies

A form of psychotherapy that emphasizes personal responsibility and focuses on the individual's experience in the present moment, within the context of their environment, using the principles of Gestalt psychology.