Development and Validation of Scale of Psychosocial Issues for Patients With Migraine

The current study was intended to develop and explored psychosocial issues of migraine patients in Pakistani culture context. In first phase of scale development, 16 participants were interviewed individually with inclusion criteria of diagnosed migraine history, aged 18-35 years generating an item pool of 44 psychosocial issues experienced by them. After 13 experts' validation, 36 items were finalized and piloted on 10 participants. To determine psychometric properties of scale, PSI was presented along with demographic sheet to 160 migraine patients (41 men and 119 women). Exploratory factor analysis of PSI clustered total of 34 items into three factors named as Functional Impairment, Mental Exhaustion, and Somatic Problems. PSI was found to have high internal consistency .92, test-retest reliability .80, split-half reliability .86 and .85, and acceptable convergent validity. Moreover, results are discussed in context of factor structure of PSI, demographics and risk factors as predictors of PSI in cultural context.