16758
In contrast , the UK Prospective Diabetes Study ( UKPDS ) risk engine overestimated CHD risk ( O / P ratios : 0 . 30 for CHD and 0 . 72 for stroke ) .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None