4575
After adjustment for age , the rate ratio of VTE in users of third - generation relative to second - generation OCs was 1 . 68 ( 95 % CI 1 . 04 - 2 . 75 ) .
 Disease: VTE; Chemical: OCs
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Disease: VTE; Chemical: OCs