Table 3.

Associated barriers to glaucoma medication nonadherence

Selected barriers	Non adherent	Adherent	95% confidence interval (CI) CORCI COR	p-value	95% AOR	P-value
Forgetfulness
Selected as the barrier	166	34	29.29(16.07–53.39)	0.001	28.32(14.80-54.16)	0.001
Not selected	20	120	1.00
Medication cost
Selected as the barrier	28	88	2.06(1.61–2.53)	0.002	1.88(0.96.-3.67)	0.06
Not selected	30	194	1.00		1.00
Life stress
Selected as the barrier	52	36	1.64(0.78–2.080)	0.338	1.27(0.778–2.08)	0.118
Not selected	118	134	1`0.00		1.00
Difficulty with schedule
Selected as the barrier	54	21	5.89(2.882–12.041)	0.001	2.52(1.009–6.29)	0.048
Not selected	81	185	1.00		1.00
Believe glaucoma does not cause vision loss
yes	34	10	3.22(1.54–6.76)	0.002	2.53(0.87–7.35)	0.088
No	152	144
Believe that eye drops are not effective
Yes	28	4	6.65(2.28–19.40)	0.001	6.35(1.17–34.49)	0.032
No	158	150
Poor self-efficacy
Yes	162	152	11.26(2.62–48.45)	0.001	10.96(1.26–95.57)	0.030
No	24	2
Poor knowledge about glaucoma
Yes	16	6	2.32(0.89–6.09)	0.087	1.87(0.35–10.08)	0.58
No	170	148
Mistrust physician
Yes	162	152	11.26(2.62–48.45)	0.001	5.16(0.73–36.65)	0.101
No	24	2	1/00		1.00
Difficulty in instilling eye drops
Yes	48	2	26.44(6.31–110.8)	0.000	1.72(0.68–4.39)	0.045
No	138	152
Side effects of medication
Yes	26	2	12.35(2.88–52.93)	0.001	1.56(0.29–8.28)	0.603
No	160	152