Fig. 1From: The relationship between headache-attributed disability and lost productivity: 2. Empirical evidence from population-based studies in nine disparate countriesThe relationships between disability attributed to migraine (calculated as proportion of time in ictal state*disability weight from GBD2015 [49]) and lost paid worktime (HALT questions 1 + 2) in the six countries with large and fully population-based samples. Values of R2 and β differ somewhat from those in Table 9 because of removal of extreme outliers that would otherwise compress the axesBack to article page