*Apologies for cross-posting*
Dear List Members,
Grading the evidence for environmental health research:
There are some excellent 'levels of evidence' and 'grades of
recommendation' tables for therapeutic/preventive studies and the
Centre for Evidence Based Medicine has helpfully expanded this
system to include studies on prognosis, diagnosis, harm and economic
analysis (http://cebm.jr2.ox.ac.uk/index.extras).
Is anybody aware of an adaption, or a different, system
which assists with the classification of the (mostly observational)
research studies on the impact of society/environment on health.
Many studies are surveys/questionnaires (controlled with similar
groups, 'before and after', or uncontrolled). Some studies
qualitatively measure opinion only while others look at measurable
and verifiable effects on health/quality of life and there is a large
variation in sample size.
I will collate and circulate any suggestions back to these
lists.
Many thanks, Alison Weightman
Dr Alison Weightman
Information Resources Manager
Health Evidence Bulletins - Wales
Duthie Library
University of Wales College of Medicine,
Cardiff, CF4 4XN. UK
e-mail: [log in to unmask]
Telephone: +1222 745142
Fax: _+1222 743651
Web site: http://www.uwcm.ac.uk/uwcm/lb/pep
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
|