Utility estimation of hypothetical chronic obstructive pulmonary disease health states by the general population and health professionals

Table 3 Observed and predicted mean values of 10 COPD health states in the general population

COPD health states	Visual analogue scale			Time trade-off
COPD health states	Observed	Predicted	Difference	Observed	Predicted	Difference
Moderate state without exacerbation	0.753	0.750	0.003	0.820	0.824	−0.004
Moderate state with 1 non-serious exacerbation	0.670	0.673	−0.003	0.746	0.743	0.004
Severe state without exacerbation	0.583	0.572	0.011	0.658	0.646	0.012
Severe state with 1 non-serious exacerbation	0.502	0.494	0.007	0.572	0.565	0.007
Severe state with 1 serious exacerbation	0.413	0.416	−0.003	0.482	0.482	0.000
Severe state with 1 non-serious +1 serious exacerbation	0.339	0.355	−0.016	0.400	0.419	−0.019
Very severe state without exacerbation	0.254	0.268	−0.014	0.297	0.305	−0.008
Very severe state with 1 non-serious exacerbation	0.186	0.191	−0.004	0.212	0.224	−0.011
Very severe state with 1 serious exacerbation	0.116	0.113	0.003	0.141	0.141	0.000
Very severe state with 1 non-serious +1 serious exacerbation	0.067	0.051	0.016	0.096	0.077	0.019

ISSN: 1477-7525