Fig. 4
From: Burden of tension-type headache in the Middle East and North Africa region, 1990-2019
Age-standardised YLD rates of tension-type headache for 21 countries and territories, by SDI in 2019; Expected values based on the Socio-demographic Index and disease rates in all locations are shown as the black line. Each point shows the observed age-standardised YLD rate for each country in 2019. YLD= years lived with disability. SDI= Socio-demographic Index (Generated from data available from http://ghdx.healthdata.org/gbd-results-tool).