Skip to main content
Fig. 5 | BMC Public Health

Fig. 5

From: Global disease burden of uncorrected refractive error among adolescents from 1990 to 2019

Fig. 5

Relationship between the disease burden of URE among adolescents and country-level indicators. Panel A. SDI. The SDI is the geometric mean of total fertility rate for those younger than 25 years old (TFU25), mean education for those 15 years old (EDU15+) and lag-distributed income (LDI) per capita. Panel B. HDI. The HDI is the geometric mean of life expectancy at birth, gross national income (GNI) per capita and average and expected years of schooling. Panel C. Primary school dropout rates. It is calculated as the percentage of students from a given cohort who have enrolled in primary school but who drop out before reaching the last grade of primary education. Panel D. Urbanization rates. It is calculated as the proportion of population living in the areas classified as urban according to the criteria used by each country or area. HDI, Human Development Index; SDI, Socio-Demographic Index

Back to article page