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Table 1 Overview of sample restrictions

From: Assessment of health state utilities in dermatology: an experimental time trade-off value set for the dermatology life quality index

Survey completed by

2459

Excluded due to quota requirements

− 458

Initial full sample

2001

Non-traders (handled separately)

− 317

Initial sample (traders only)

1684

Excluded due to identical valuation on all five health states

− 296

Excluded by combination of response time and response consistency criteria

− 656

Excluded due to uninformative responses

− 207

Final sample used for the regression analysis (traders only)

525

Non-traders (used for the adjustment of regression results)

 + 317

Respondents whose valuations were taken into account in defining the value set

842