PhD thesis - University of Hertfordshire Research Archive

hypotheses a „blank canvas‟ approach was necessary. If aims were set
based on existing knowledge then generating new hypotheses would have
been problematic if not impossible.
Figure 3. The health authorities (darker green) in England and Wales
participating in the Campylobacter Sentinel Surveillance Scheme, by NHS
region (black line).
In order to accomplish these aims the following study objectives would need
to be met:
To establish a working group for the project, including epidemiologists,
microbiologists and statisticians, as well as representation from
public/environmental health.
To develop a single study protocol, covering the epidemiological and
microbiological aspects of the study and including sample size
calculations.
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