A long-term follow-up study of diabetes has been conducted among Pima Indian residents of the Gila River Indian Community of Arizona since 1965. Subjects of this study at least 5 years old and of at least half Pima ancestry were examined approximately every two years; examina- tions included measurements of height and weight and a number of other factors. Table E1.34 relates diabetes incidence rate (new cases/1000 person-years) to body mass index (a measure of obesity defined as weight/height2). Display these rates by means of a bar chart.
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TABLE E1.34
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Body Mass Index
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Incidence Rate
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20
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0.8
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20-25
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10.9
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25-30
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17.3
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30-35
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32.6
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35-40
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48.5
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b40
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72.2
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