Validity and Reliability of the Greek WPAI:Migraine

Migraine is a common neurological disorder that can substantially impair work productivity and daily functioning through both absenteeism and presenteeism. The Work Productivity and Activity Impairment Questionnaire for Migraine (WPAI:Migraine) is a brief patient-reported measure designed to assess migraine-related impairment in work and daily activities. Although the questionnaire has demonstrated validity and reliability in other populations, a validated Greek version is currently unavailable. This study aims to evaluate the validity and reliability of the Greek version of the WPAI:Migraine in individuals with episodic or chronic migraine, thereby providing an appropriate tool for assessing migraine-related work productivity and functional impairment in the Greek population.