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Fig. 5 | BMC Infectious Diseases

Fig. 5

From: Google Health Trends performance reflecting dengue incidence for the Brazilian states

Fig. 5

Total population and volatility index as predictors of Google Health Trends adjusted R squared. From 474 predictors, variables related with population where the most informative anticipating GHT behavior (top-left). The volatility index was useful detecting GHT accuracy although imprecise in some states such as Acré (top-right). Models considering the standardized volatility index and either the total population (bottom-left) or the number of Internet users (bottom-right) were the most informative anticipating GHT accuracy. Abbreviations of Brazilian states: AC: Acré, AL: Alagoas, AP: Amapá, AM: Amazonas, BA: Bahia, CE: Ceará, DF: Distrito Federal, ES: Espírito Santo, GO: Goiás, MA: Maranhão, MT: Mato Grosso, MS: Mato Grosso do Sul, MG: Minas Gerais, PA: Pará, PB: Paraiba, PR: Paraná, PE: Pernambuco, PI: Piauí, RJ: Rio de Janeiro, RN: Rio Grande do Norte, RS: Rio Grande do Sul, RO: Rondônia, RR: Roraima, SC: Santa Catarina, SP: São Paulo, SE: Sergipe, TO: Tocantins

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