Zusammenfassung der Ressource
Case reports
and case series
- Case reports
- descriptive account of a case of a
condition of interest (often about a
single patient or subject)
- details of all the relevant
circumstances in the form of a
'story'.
- compiled on the basis of detailed clinical
observations that are usually taken from the
hospital records of a patient(s)
- when an unusual case is identified and its
significance realised by a treating doctor or a
researcher
- useful for describing aspects of a
condition, a treatment, or an adverse
reaction to a treatment
- Case series
- when a number of case reports are collected
together into a short series. No control groups
are involved.
- systematic collection of data on a number of
cases with a similar disease or condition of
interest.
- Results from case studies cannot provide any
information on possible reasons for the findings
but are often the source of later hypotheses,
which are then tested by more robust study
designs
- A new, rare or unique disease or
condition
- lead to further research focussing on the
cause of the adverse events.
- main weakness is the absence of a control group of
non-cases, in which frequencies of exposure to hypothesised
risk factors can be explored.
- evidence-based perspective very
important
- written up and published within days
of an event and they are often readily
understandable by non-academic
clinicians and lay people
- That's why health products use them esp
when there's little or no evidence to back
up claims
- 1.How could two teenagers catch malaria from local
mosquitoes near Washington DC?