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4. How to construct a good EBVM question?
4.2. I – Intervention: treatment, prognostic factor or exposure
4.2 I – Intervention: treatment, prognostic factor or exposure
You might be interested in a specific treatment, a factor that will indicate prognosis in a disease process, or the association of a certain exposure with disease, depending on the question.
These interventions are often considered with their matching comparators – something you might compare against the group receiving the intervention (see the next page for further information about comparators).
Table 2: Examples of questions expressed as intervention or interest
| QUESTION | INTERVENTION/INTEREST |
|---|---|
|
Which diet is best to feed cats with chronic renal disease? |
Feeding a renal prescription diet |
|
Which diagnostic test is most reliable for diagnosing fascioliasis in lactating dairy cattle? |
Milk ELISA |
|
Does sex affect survival in flat-coat retrievers with cutaneous lymphoma? |
Being male |
|
Are the risks of inhalational induction of general anaesthesia higher compared to injectable induction ferrets under different protocols? |
General anaesthesia induction by triple injectable agent |
|
Are cardiac disorders in Welsh Section A mountain ponies more prevalent than other breeds? |
Being a Welsh Section A mountain pony |