Onto the most important parts of therapeutic papers, what difference does the treatment make?
There are several ways to describe the treatment effect, several of which can be used, consciously or not, to lead to a description that overstates the effect. In this section we run through how the effect can and should be described to give an accurate impression of its effect.
The authors should not only state whether the treatment was better but should try to quantify the extent of the treatment (not just if effective but how effective e.g. if an analgesic-not just if it helps with pain but to what extent it helps)
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Once you’ve listened help consolidate the topics covered with the questions below.
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Relative risk reduction is the same as absolute risk reduction?
Relative risk reduction can overly inflate the degree of treatment effect?
ARR is the difference in event rate between the treatment group’s event rate and the control groups event rate?
The NNT is the reciprocal of the ARR?