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Soda tax in the US 汽水也徵稅?

Data source: CDC & Tax Foundation
Map created by CUHK SpatioEpi Group

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Obesity is a significant public health problem in the United States, posing burden on both disease morbidity and medical expenditure. In some of the states, disfavoured tax for soft drinks and selected snacks is imposed to discourage consumption of these high-calorie products. This map shows the prevalence of obesity in adults by state and the distribution of states levying disfavoured soda tax in 2011.

As depicted by graduated colours, states in eastern or central southern part of the United States had a higher proportion of obese adults. Highest prevalence of obese adults was observed in Louisiana, Mississippi and West Virginia. As indicated by drink symbol, soda tax was levied in Washington DC and other 22 states, which were mainly located in north-eastern United States. Both patterns show spatial autocorrelation but do not follow the same distribution.

Data for the map were obtained from Centers for Disease Control and Prevention and Tax Foundation.