Information on how items for costing were identified
Evidence of content validity since resources were defined prior to study.
Journal article: Wade A, Fernández J L, François C, et al, Escitalopram and duloxetine in major depressive disorder: a pharmacoeconomic comparison using UK cost data. , Pharmacoeconomics , 2008, 26, 969-81
Piloting of questionnaires for patient / carer completion
Evidence of content validity since resources were defined prior to study.
Validation
Evidence of content validity since resources were defined prior to study.
Journal article: Wade A, Fernández J L, François C, et al, Escitalopram and duloxetine in major depressive disorder: a pharmacoeconomic comparison using UK cost data. , Pharmacoeconomics , 2008, 26, 969-81
Adaptations
This Resource Use Questionnaire was adapted from one used in a similar study.