Table 3.

Baseline characteristics of participants

Characteristic	Fluoroquinolone Recipient	Beta-Lactam Recipient
Number of patients	247,073	3,303,641
Number of prescriptions (Rx)	290,393	6,314,030
Age, mean years (range)	55.1 (1-109)	40.0 (1-111)*
Female gender, percentage	54.0%	55.8%*
Diabetic (%patients/%Rx)	10.2/10.2	6.0*/6.5*
Average year of cohort entry	2005	2005
Total eligible retinal breaks (RT/RD**)	183 (49/134)	2502 (612/1890)

^*p<0.001

^**RT = retinal tear, RD = retinal detachment