Fig. 5From: Global diversity of policy, coverage, and demand of COVID-19 vaccines: a descriptive studyCorrelations with vaccine coverage. Correlation of cumulative doses administered per 100 people among total populations or target populations with healthcare access and quality (HAQ) index (A, B), socio-demographic index (SDI) (C, D), GDP per capita (units: dollars) after adjusting for purchasing power parity (E, F). Solid lines show linear or nonlinear fitBack to article page