Fig. 2

Stigma towards people with migraine by relationship(s) with people with migraine. Standardized mean differences were used to determine comparisons between groups (all groups were individually compared to the group “None”). SMD values < 0.2 were considered not different, * indicates a small difference (SMD = 0.2–0.49), ** a moderate difference (SMD = 0.5–0.79), and *** a large difference (SMD ≥ 0.8)