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Surveys and monitoring systems – design questions,
analysis and presentation of results
Dates:
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March
26-27, 2007 |
Location:
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SAS-Radisson Hotel,
Dipoli, Finland
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Instructors:
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Marcus Doherr, University of Bern, Switzerland
Nils
Toft, Faculty of Life Science, University of Copenhagen, Denmark
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Objective:
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The course objective is
to make participants familiar with different software tools (Excel,
@Risk, WinBugs, R) and published (tested) routines in order to
analyze (risk-based) disease survey and monitoring data
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Background:
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The
crude outcome of (risk-based) disease-monitoring systems is the
number of existing (prevalent) or newly occurring (incident) cases
of the outcome of interest, which for comparison purposes needs to
be put into relation to the sample of animals at risk of being a
case of or developing this outcome during a given period of time.
The resulting proportions or rates include both sampling variability
and, depending on the approach, the diagnostic tests used etc., also
uncertainty, which should be acknowledged when presenting the
results to decision makers and other stakeholders. Although data are
similar in appearance, the design and purpose of the sampling scheme
might impose very different restrictions and/or considerations when
analyzing and subsequently presenting the outcome.
Consider a disease that is endemic in the population. A natural
first step is to assess the magnitude of this disease, i.e.
establish the prevalence through a cross-sectional study. If
subsequently a decision is made to control/eradicate this disease,
then there is a need to evaluate the control program by estimating
the incidence or changes in prevalence across time. Finally, if the
control program is successful in eradicating the disease, there is a
need to demonstrate freedom from disease.
The objective of this proposed workshop course is to present a
practical approach to analyzing and presenting survey/monitoring
data from each of the three situations described above. The course
will focus on presenting a series of working solutions in terms of
“templates” for analyses for the different scenarios using different
statistical methods and tools. In addition, approaches how to (best)
present the outcome with respect to the specific monitoring
objective will be discussed. At the end of the course, participants
are expected to have developed an understanding of the challenges
and options in analysing such problems, including the importance of
the link between design, sampling and analytic issues.
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Teaching methods:
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30%
lectures, 70% hands-on exercises
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Class
size:
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Maximum 25 participants
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Required or suggested knowledge base for participants:
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The
course is designed such that participants with varied experience in
epidemiological analysis can attend. Participants will be provided
with a choice of exercises tailored to accommodate different levels
of background knowledge and computer skills.
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Course
fee: |
360 Euro + 120 Euro for
accommodation per night, i.e. 600 Euro if arriving Sunday. It is
possible to share rooms, see the registration procedure for details.
There might be a 60 Euro fee for registering after January 31. The
registration fee covers course materials and meals during the
course. |
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Registration: |
Registration is through
the registration procedure for the SVEPM-conference. Please consult
this page:
http://www.svepm.org.uk/conferences.php?view=3 or if you are
brave you can proceed directly to the
registration, but this is really not encouraged. |
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Program: |
A tentative program will
appear here soon, but the course will essentially run from 9 to 17
on both days. |
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