COMLEX II: Statistics Exam Questions And Complete Solutions
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Course
COMLEX
Institution
COMLEX
How do you calculate relative risk? - Correct Answer [A/(A+B)]/[C/(C+D)]
expresses the risk of disease in people exposed to a given factor
What type of study uses relative risk to evaluate conclusions? - Correct Answer cohort study
what type of study uses odds ratio to evaluate conclusio...
COMLEX II: Statistics Exam Questions And Complete
Solutions
How do you calculate relative risk? - Correct Answer [A/(A+B)]/[C/(C+D)]
expresses the risk of disease in people exposed to a given factor
What type of study uses relative risk to evaluate conclusions? - Correct Answer cohort study
what type of study uses odds ratio to evaluate conclusions? - Correct Answer case-control study
what is the difference between case-control and cohort studies? - Correct Answer cohort study:
examines a group of subjects exposed to a given situation or factor; usually prospective
case-control: retrospective comparison of patients with a disease to healthy controls; frequency of
certain exposures in both groups is considered
How do you calculate the odds ratio? - Correct Answer (A/B)/(C/D)
expresses the odds of exposure among patients with a disease compared with odds of exposure among
patients wo a disease
What does an RR val of 1 mean? - Correct Answer RR = 1 means that there is NO relationship between
exposure and disease
What does RR <1 mean? - Correct Answer RR <1 suggests a negative relationship between exposure
and disease (exposure prevents disease)
What does RR >1 mean? - Correct Answer RR>1 suggests a positive relationship between exposure and
disease (exposure increases risk of dz)
When are OR and RR equivalent? - Correct Answer OR is an estimate of RR when the prevalence is low
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