Fig. 4
From: The burden of migraine and tension-type headache in Asia from 1990 to 2021
The associations between SDI and the disease burden of migraine (a-c) and TTH (d-f) in Asia. SDI = socio-demographic index, ASPR = age-standardized prevalence rate, ASIR = age-standardized incidence rate, ASDR = age-standardized DALYs rate, DALYs = disability-adjusted life years, TTH = tension-type headache