Temporal Trend in the Coexistence of Risk Behaviors for Noncommunicable Diseases in Brazil: 2009–2019

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The line graph shows 2 simple curves plotted on an x, y axis with 2 y-axes. The y-axis on the left (labeled “Information”) ranges from 1.0 to 1.8. The y-axis on the right (labeled “Standard error”) ranges from 0.75 to 0.95. The x-axis (labeled “Coexistence of NCD risk behaviors”) ranges from negative 4 to positive 4. The larger and the further to the right the information curve is, the greater the legitimacy of the information produced by the test. The information curve starts at the lower left corner of graph (at approximately x = negative 4, y = 1.1), moves upward to reach an apex at approximately x = 2, y = 1.8, and then moves downward to end at approximately x = 4, y = 1.3. The standard error curve starts in the upper left (x = negative 4, y = 0.96), moves downward to reach a nadir at approximately x = 2, y = 0.76, and then moves upward to end at approximately x = 4, y = 0.86. The smallest standard error occurs at the apex of the information curve.

Figure.
Test information curve of the measure of coexistence of noncommunicable disease–related risk behaviors among Brazilian adults. Data source: Surveillance System for Risk Factors and Protection for Chronic Diseases by Telephone Survey (Vigitel), 2009–2019. Abbreviation: NCD, noncommunicable disease.

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