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Systemic quinolones and risk of retinal detachment III: a nested case-control study using a US electronic health
Mohamed Kadry Taher1,2,3, James A G Crispo4,5,6, Yannick Fortin4,7
1McLaughlin Centre for Population Health Risk Assessment, Faculty of Medicine, University of Ottawa, Room 216, 600 Peter Morand Crescent, Ottawa, ON, K1G 5Z3, Canada. Mohamed.Taher@uOttawa.ca.
Background:
Quinolones are popular antibiotics that are known for their potency, broad coverage, and reasonable safety. Concerns have been raised about a possible association between quinolones and retinal detachment (RD).
Methods:
We conducted a nested case-control study using electronic health records (EHR) from the Health Facts® Database. The initial cohort included all patients who were admitted between 2000 and 2016, with no history of eye disease, and had a minimum medical history of one year. Eligible cases comprised inpatients who were first admitted with a primary diagnosis of RD between 2010 and 2015. Each eligible case was matched without replacement to five unique controls by sex, race, age, and period-at-risk. We used conditional logistic regression to calculate RD risk, adjusting for exposure to other medications, and major risk factors.
Results:
We identified 772 cases and 3860 controls. Whereas our primary analysis of all subjects revealed no quinolone-associated RD risk, elevated but non-significant risks were noted in African Americans (ciprofloxacin and levofloxacin), those aged 56-70 years old (moxifloxacin), and women (ciprofloxacin).
Conclusion:
Our study did not identify an elevated RD risk within 30 days following systemic administration of quinolone antibiotics. Suggestions of increased risk observed in some population subgroups warrant further investigation.
