5987
When comparing men in the lowest and highest decile of physical fitness , the risk of a fracture was 1 . 8 times higher ( 95 % CI , 1 . 6 - 2 . 1 ) and that of hip fracture was 2 . 7 times higher ( 95 % CI , 1 . 6 - 4 . 7 ) .
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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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