Table 3.

Univariate and multivariable analysis of factors associated with advanced or end stage glaucoma at presentation, using the most affected eye

		Univariate analysis			Multivariable analysis
		OR	95 % CI	P value	OR	95 % CI	P value
Sex	Male	1.0			1.0
	Female	0.97	0.42-2.22	0.942	0.85	0.25-2.92	0.795
Age	Less than 50 years	1.0			1.0
	>50 years	4.9	2.06-11.65	<0.001	3.45	1.24-9.58	0.017
Family history of glaucoma	Positive	1.0			1.0
	Negative	0.53	0.21-1.29	0.16	0.39	0.12-1.28	0.122
Distance to hospital	10 km or less	1.0			1.0
	More than 10km	3.27	1.24-8.67	0.017	2.74	0.75-10.09	0.129
Knowledge about glaucoma	Poor	1.0			1.0
	Good	0.22	0.08-0.59	0.002	0.27	0.80-0.92	0.036
Literacy	Literate	1.0			1.0
	Not literate	3.9	1.65-9.19	0.002	2.19	0.69-6.92	0.180
Awareness of having glaucoma	Yes	1.0
	No	1.07	0.46-2.46	0.864			NS
Ethnicity	Hausa	1.0
	Other	0.80	0.52-1.24	0.327			NS
Occupation	Professional/civil servants etc.	1.0
	Traders/Artisans/farmers	1.40	0.58-3.39	0.301			NS
	Housewife/unemployed	4.27	1.12-16.12	0.032			NS
Mode of presentation	Referred	1.0
	Symptomatic	3.26	1.09-9.78	0.034			NS
	Opportunistic	0.42	0.87-2.06	0.288			NS
	First degree relative	1.69	0.33-8.67	0.525			NS
Residence	Rural	1.0
	Urban	0.35	0.11-1.07	0.067	0.65	0.15-2.79	0.56

OR = odds ratio; 95 % CI = 95 % confidence interval; NS = not statistically significant