Strengths and limitations
Given that the data came from a range of regions in the
UK1, the results of this economic evaluation are
generalisable across the NHS. Considerable differences exist in
infrastructure and resource availability between high and low-income
countries and so further research is required before these results can
be generalised internationally.
The main limitation of this economic evaluation was the need to make
assumptions regarding the patient journey to construct the decision tree
model. In this process some branches may have been omitted, notably that
of patients with no pain but relevant perineum related complications.