MPH515 Module 7 Quiz Latest 2021
Epidemiology and Biostatistics for Public Health Application I
Question 1
Failing to account for age cohort effects in smoking prevalence may:
obscure the fact that there had been a shift in the age of onset for lung cancer toward earlier
ages as well as the differences in smoking prevalence for males and females, and by level of
education.
obscure the fact that older cohorts had higher prevalence of smoking in comparison to
younger cohorts.
obscure the fact that there had been a shift in the age of onset for lung cancer toward earlier
ages.
obscure the differences in smoking prevalence for males and females, and by level of
education.
Question 2
A five-year prospective cohort study has just been completed. The study was designed to
assess the association between supplemental vitamin A exposure and mortality and morbidity
for measles. The RR for incidence of measles was 0.75, and the RR for measles mortality was
0.5.
Which statement is correct?
One of the problems that this study may have faced is individuals lost to follow-up during the
five-year period.
Supplemental vitamin A increases the incidence of measles.
A cohort study is not an appropriate study design in this case because the association between
one exposure and two different outcomes is being considered.
Epidemiology and Biostatistics for Public Health Application I
Question 1
Failing to account for age cohort effects in smoking prevalence may:
obscure the fact that there had been a shift in the age of onset for lung cancer toward earlier
ages as well as the differences in smoking prevalence for males and females, and by level of
education.
obscure the fact that older cohorts had higher prevalence of smoking in comparison to
younger cohorts.
obscure the fact that there had been a shift in the age of onset for lung cancer toward earlier
ages.
obscure the differences in smoking prevalence for males and females, and by level of
education.
Question 2
A five-year prospective cohort study has just been completed. The study was designed to
assess the association between supplemental vitamin A exposure and mortality and morbidity
for measles. The RR for incidence of measles was 0.75, and the RR for measles mortality was
0.5.
Which statement is correct?
One of the problems that this study may have faced is individuals lost to follow-up during the
five-year period.
Supplemental vitamin A increases the incidence of measles.
A cohort study is not an appropriate study design in this case because the association between
one exposure and two different outcomes is being considered.
