Analytical epidemiological studies?

When a new treatment is developed that delaysdeath but does not produce recovery from a chronic disease, which of the following will occur?

a.Prevalence of the disease will decrease
b.Incidence of the disease will increase
c.Prevalence of the disease will increase
d.Incidence of the disease will decrease
e.Incidence & prevalence of the disease will decrease

Key: c

Which one of the following gives the strength of association between the cause and the disease?a.Prevalence rate.
b.Case fatality rate.
c.Adjusted rate.
d.Incidence rate.
e.Disease index.

Key: d

Which one of the following is not included in analytical epidemiological studies?

a.Historical cohort studies
b.Cohort studies
c.Case control
d.Case report
e.Experimental studies

Key: d