Since 1970, HFCS Intake Has Increased Dramatically, While Sucrose Use

question 73

Essay

Since 1970, HFCS intake has increased dramatically, while sucrose use has declined. Over this same time period, the incidence of obesity has more than doubled. Based on what you know about epidemiological studies, can the conclusion that HFCS consumption causes obesity be accurately made? Explain.

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Definitions:

Stepwise Regression

A method of fitting regression models in which predictors are added or removed based on specific criteria, such as their statistical significance.

Regression Model

A statistical technique that models and approximates the relationship between a dependent and one or more independent variables.

Nonlinear Relationship

A type of relationship between two variables where a change in one variable does not lead to a constant change in the other variable.

Stepwise Regression Analysis

A method of fitting regression models where the choice of predictive variables is carried out by an automatic procedure.