Abstract:
The goal of epidemiology is to improve the health status of
human populations. In our series thus far we have srressed
the need to use the correct design for epidemiological studies,
a sampling scheme that yields interpretable results, measurements
that are both valid and reliable, and finally the appropriate
analysis. These methodological considerations are of
importance if the goal is to be reached. In this article we
assume that most of these issues have been adequately dealt
with and focus on how the results of epidemiological research
can be used by health planners to improve the health status of
regions and the country as a whole.