Theunissen, K.A.T.M.

utility change depression health score bdi-ii eq -5dnl sf -6d -5dnl -5duk study anchor eq -5d improvement eq -5duk instrument method baseline follow-up utility change tariff agreement responsiveness uk tariff outcome patient utility changes quality value correlation trial treatment dfd method dutch tariff beck depression inventory measure health status month deterioration euroqol subgroups depression severity severity 12 month follow-up cost-effectiveness utility measures result subgroup netherland difference fi ndings status group signi brazier table range evaluation dutch research domain psychiatry maastricht university population point comparison 12- randomized trial deviation signi ficant change therapy ficant maastricht 732–739 0.70 change scores participant groc anchor evers smaa randomized