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. 2017 May 12;3(1):e000227. doi: 10.1136/bmjsem-2017-000227
Variable Frequency Per cent
Education
University, college or trade school 212 79.7
High school or less 54 20.3
Marital status
Married/common-law 188 70.7
Other 78 29.3
Ethnic origin  
Caucasian 237 89.1
Other 29 10.9