Explain the meaning of necessary and
sufficient in the context of causal
relationships in epidemiology.
In the first type of causal relationship, a
factor is both necessary and sufficient for
producing the disease (Gordis, 2014).
Without necessary and suf
Chapter 1 and 2
Explain the key objectives of epidemiology in advancing community health.
For each objective, provide at least one practical example of its impact on
Epidemiology is the study of how disease is distributed in populations
Discuss positive and negative predictive value in epidemiology. Why is this concept so
important in our field?
Positive predictive value is in reference to what is the probability that a patient
has a particular disease (Gordis, 2014). Taking from the boo
Explain the use of life tables for examining changes in survival. Why are life
tables so important in epidemiology?
Life tables are used in virtually every clinical area (Gordis, 2014). Using life
tables show about the standard means of survival. These li