Quiz 2

Which of the following observational designs is used for hypothesis testing?

Cohort Studies

The risk of acquiring a given disease during a time period is best determined by:

The incidence rate for that disease in a given period of time

A national survey of asthma conducted on May 1, 2012 obtained the following results for the state of Oklahoma: X--The number of residents with asthma Y--The population of the state on June 30, 2012; all members of the population were considered at risk. Z--The number of new cases of asthma diagnosed during 2012 The incidence rate of asthma during 2012 (per 100,000) would be expressed as:

(Z/Y) × 100,000

During April, 2009, a Texas community reported 87 cases of H1N1-associated influenza. Ultimately, 9 fatal cases of H1N1 occurred during this same month. There were 4 other fatalities. The CFR associated with H1N1 during April was:

9/87 × 100

Cohort study is to risk ratio as:

Case-control study is to odds ratio.

Examples of purely observational epidemiologic studies do not usually include:

Experimental studies

Which of the following activities characterizes the epidemiologic approach (as opposed to the clinical approach)?

Study of cancer occurrence in populations

Those members of the population who are capable of developing a disease or condition are known as:

The population at risk

Which of the following statements is untrue about case-control studies

They are a type of longitudinal design.

The point prevalence of asthma (proportion) on May 1, 2012, would be expressed as:

X/Y