Thursday 1 November 2012, 2.00PM to 3.15pm
Speaker: Louise Longworth, Reader in Health Economics, HERG, Brunel University
Abstract: The EQ-5D is a commonly used measure of quality of life and is widely used in economic evaluations of health interventions; however there are concerns about its validity and responsiveness in some specific conditions. One potential solution to this problem is to develop ‘bolt-on’ items to the EQ-5D.
In this seminar I will present results from the NICEQoL project. Three potential bolt-on items to EQ-5D were developed to describe the following health problems: vision impairment, hearing impairment and tiredness. All three were tested in an exploratory study and the bolt-on for vision impairment was then selected for full valuation. EQ-5D states with and without the ‘Vision’ item were valued using the time trade-off method in a sample of the general population. Random effects models were used to analyse the data for EQ-5D with and without the bolt-on item separately. The results from the studies demonstrated that all three potential bolt-on items had a significant impact on EQ-5D health state values. Furthermore, the analysis of EQ-5D+Vision suggest that the impact of the bolt-on item depends upon the severity of the EQ-5D state to which it is added.
Location: ARRC Auditorium A/RC/014