Table 1 Main categories of questions included in the OVERCOME (EU) survey

Socioeconomic status

Family circumstances; work situation; educational level; income

Lifestyle and health status

(Cardiovascular) comorbidities; BMI; smoking; alcohol use; impact of COVID-19

Diagnosis and healthcare resource utilization

Self-reported; based on ICHD-3 criteria; age at first diagnosis; medical tests; diary use; frequency of HCP visits; time between making appointments and visits; insurance

Clinical features of migraine

Headache frequency; age at first attack; allodynia symptoms (ASC-12) [11]; aura, sensory, timing and duration of attacks; sleep interference; menstrual migraine

Use of medication

Former and current use of acute and/or preventive medication (prescription and/or OTC; on agent level); reasons for, order, frequency, timing and duration of use of medications; prescribing HCP/location; medication access issues; effectiveness of each medication (on agent level); reasons for delayed use, switching or stopping, or not taking medications; out-of-pocket payments for medications; preventive therapies except medications

Barriers to care

Hesitation to consult HCP; reasons for hesitation

Burden of migraine and QoL

Migraine disability (MIDAS) [12, 13]; migraine-specific QoL (MSQ v2.1) [14,15,16]; impact of migraine on different aspects of (daily) life (EQ-5D-5L) [17]; driving attitudes and behaviour; work productivity and activity impairment (WPAI) [18]; impact of migraine compared to other patients; impact of migraine on family (IMPAC scale) [19]; interictal burden (MIBS-4) [20, 21]; depression (PHQ-8) and anxiety (GAD-7) [22]

Stigma

Reputation; prejudices of others