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We calculated estimates age - standardized to the 2000 U . S . census population and used logistic regression to compute estimates adjusted for age , sex , race / ethnicity , poverty - to - income ratio , and BMI .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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