| June 11th 2003 at MMU at 4.30pm for 5.00pm
This meeting will include a
very short AGM and report Graham Dunn
(Biostats Group at Manchester University)
The challenge of patient choice and non-adherence to
treatment in RCTs of counselling and psychotherapy
The talk will start with a short and relatively non-technical
review of recent statistical ideas on the analysis and
interpretation of results of RCTs in which there might be
non-adherence to allocated treatment. This involves the use of
potential outcomes (counterfactuals) in the definition and
estimation of treatment effects. The ideas will be illustrated
using data from the ODIN trial (BMJ 321, 1450-4, 2000). I will
then move on to discuss how such methods might help us to
evaluate the potential of partially- randomised 'patient
preference' designs and to compare them with other, possibly
more promising, alternatives.
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