For the objectives listed below, indicate which of the following models would provide the most appropriate regression equation:

Question 23 (1 point)

A new drug was created to help treat MDR/XDR TB patients who are also HIV positive. The investigator wanted to see if the new drug prolonged life compared to the standard of care in subjects with this deadly comorbidity.

Question 23 options:

Linear regression

Logistic regression

Cox proportional hazard regression

Longitudinal regression

Question 24 (1 point)

To estimate the effect of an individual's weight on blood pressure.

Question 24 options:

Linear regression

Logistic regression

Cox proportional hazard regression

Longitudinal regression

Question 25 (1 point)

To estimate the odds of an individual having heart disease and its association with a family history of heart disease while controlling for age, exercise habits, diet and socioeconomic status.

Question 25 options:

Simple Linear Regression

Simple Logistic Regression

Multiple Linear Regression

Multiple Logistic Regression

Question 26 (1 point)

To assess change in weight in an individual over the course of fall, spring, summer and winter weigh-ins in those who had a work-supported weight loss program and those who did not.

Question 26 options:

Linear regression

Logistic regression

Cox proportional hazard regression

Longitudinal regression

Question 27 (1 point)

When a new measure (e.g. test, procedure, treatment) is used that enhances survival or detects disease in more people, the net effect is:

Question 27 options:

an apparent increase in mortality

an apparent decrease in prevalence

an apparent decrease in incidence

an apparent increase in prevalence

Question 28 (1 point)

Several studies have found that approximately 85% of cases of lung cancer are due to cigarette smoking. This measure is an example of:

Question 28 options:

Incidence

Prevalence

Case-fatality ratio

Population attributable risk percent

Question 29 (1 point)

Rates are adjusted for age to:

Question 29 options:

Remove the bias of dissimilar age group distribution between populations.

Minimize the health problems of a community as compared to standard.

Determine how well a community compares with acceptable national births, deaths, and disease rate standards.

Allow valid comparison between populations with similar age distributions but different race and sex make-up.

Question 30 (1 point)

The association between exposure to lead-based paint and developmental disabilities in children is studied, and the following information is recorded for each child in the study:

• Race (black or white)
• Age (in years)
• Amount of exposure (rated from 0 for no exposure to 3 for more than 3 years of exposure).

Which of the following choices lists these variables in order of nominal, ordinal, and interval/continuous?

Question 30 options:

Amount of exposure, race, age

Age, race, amount of exposure

Race, amount of exposure, age

None of the above