22819
The adjusted regression coefficient was 4 . 4 ( 95 % CI : 3 . 6 - 5 . 2 , p < 0 . 001 ) for Se < 100 mu g / L while - 3 . 6 ( 95 % CI : - 6 . 1 to - 1 . 1 , p < 0 . 01 ) for Se >= 100 mu g / L .
 Chemical: Se; Chemical: Se
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Se; Chemical: Se