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. 2020 Oct 8;17(10):e1003369. doi: 10.1371/journal.pmed.1003369

Fig 3. The association between heat exposure (for every 5°C increase in daily mean temperature) and hospitalization during lag 0–7 days, stratified by socioeconomic level, sex, and age group.

Fig 3

Literacy rate (A), urbanization rate (B), household income (C), and GDP per capita (D). Q1–Q4 represent 4 quartiles from the lowest to the highest. GDP per capita classifications were based on the World Bank’s 2015 standard. CI, confidence interval; GDP, gross domestic product.