Measuring health-related quality of life in chronic headache: A comparative evaluation of the Chronic Headache Quality of Life Questionnaire and Headache Impact Test (HIT-6).

Kirstie L HaywoodFelix AchanaVivien NicholsGemma PearceBarbara BoxLynne MuldoonShilpa PatelFrances GriffithsKimberly StewartMartin UnderwoodManjit M Matharunull null

Published in: Cephalalgia : an international journal of headache (2021)

While both measures are structurally valid, internally consistent, temporally stable, and responsive to change, the CHQLQ has greater relevance to the patient experience of chronic headache.Trial registration number: ISRCTN79708100. Registered 16th December 2015, http://www.isrctn.com/ISRCTN79708100.

Keyphrases

clinical trial
study protocol
randomized controlled trial
phase iii
phase ii
drug induced
drug delivery
open label