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In logistic regression , compared with white participants , black participants had lower levels of macrovascular complications ( OR 0 . 52 , 95 % CI 0 . 32 , 0 . 84 ; p = 0 . 01 ) .
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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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