Table 3. Factors associated with knowledge about complications of contact lenses (CLs).

Predictors	Estimates	CI	p
(Intercept)	3.10	1.26 – 4.95	0.001
Gender: Female	Ref
Gender: Male	-0.10	-0.93 – 0.74	0.822
Age: < 30 years	Ref
Age: 31-40	-1.10	-1.77 – -0.43	0.001
Age: 41-50	-2.26	-3.11 – -1.41	<0.001
Age: 51-60	-1.41	-2.95 – 0.13	0.073
Age: above 60	-2.89	-8.07 – 2.29	0.273
Education: Primary	Ref
Education: High school	0.75	-1.16 – 2.66	0.438
Education: Bachelor degree	0.79	-1.08 – 2.66	0.406
Monthly income: < 5000 SAR	Ref
Monthly income: 5000-15000 SAR	0.40	-0.22 – 1.02	0.210
Monthly income: >15000 SAR	0.94	0.11 – 1.77	0.026
Contact lens use: Previous user	Ref
Contact lens use: Current user	-0.21	-0.73 – 0.32	0.433