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Figure 5 Myocardial Glucose Uptake and Glucose Utilization/Plasma Insulin
Panels A and B show the groups' myocardial glucose uptake and glucose utilization/plasma insulin, respectively. Glucose uptake and utilization were measured with positron emission tomography and insulin with a radioimmunoassay. Obesity's and gender's significant interaction in the prediction of glucose uptake (p < 0.05) is shown graphically because both the magnitude and direction of the effect of obesity on myocardial glucose uptake differ in men and women. Obese men have lower uptake than nonobese men; obese women, however, have greater uptake than nonobese women. Obesity and gender also interacted in determining glucose utilization/plasma insulin (p = 0.01), as shown by the magnitude of the difference between the obese and nonobese men and that between the obese and nonobese women.
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