765
Using as the reference group women who were not using oral contraception , had no recent pregnancy or menopausal symptoms , the case - control analysis gave an adjusted odds ratio ( OR ( adj ) ) of 7 . 44 ( 95 % CI 3 . 67 - 15 . 08 ) for CPA / EE use compared with an OR ( adj ) of 2 . 58 ( 95 % CI 1 . 60 - 4 . 18 ) for use of conventional COCs .
 Chemical: CPA; Chemical: EE
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: CPA, EE 
Answer:
 Chemical: CPA; Chemical: EE