Comparisons of direct and indirect utilities in adult epilepsy populations: A systematic review.
Emma FosterZhibin Chen MBiostatRichard Ofori-AsensoRichard NormanPatrick CarneyTerence J O'BrienPatrick KwanDanny LiewZanfina AdemiPublished in: Epilepsia (2019)
Direct methods, with the important exception of VAS, may provide higher utilities than indirect methods. More studies are needed to identify the most appropriate utility instruments for epilepsy populations, and to investigate whether there is variation between utilities for different types of epilepsy and other patient- and disease-specific factors.