OBJECTIVE
To investigate whether oral fluoroquinolone use is associated with an increased risk of aortic aneurysm or dissection.
DESIGN
Nationwide historical cohort study using linked register data on patient characteristics, filled prescriptions, and cases of aortic aneurysm or dissection.
SETTING
Sweden, July 2006 to December 2013.
PARTICIPANTS
360 088 treatment episodes of fluoroquinol...