The Prevalence of Visual Acuity Impairment among School Children at Arada Subcity Primary Schools in Addis Ababa, Ethiopia

Table 4

Bivariate logistic regression analysis of factors associated with VAI.

Variables	Visual acuity				Total		OR (95% CI)	value
	VA > 6/12		VA ≤6/12
	n	%	n	%	n	%
Sex
Female	180	47.6	12	3.2	192	50.8	1	0.38
Male	176	46.6	10	2.6	186	49.2	0.65 (0.25–0.67)
Age
5–8	75	19.8	6	1.6	81	21,4	1	0.26
9–12	158	41.8	9	2.4	167	44.2	4.57 (0.74–28.34)	0.10
13–16	123	32.5	7	1.9	130	34.4	2.73 (0.58–12.964)	0.19
School
HTCPS	241	63.8	14	3.7	255	67.5	1	0.74
ZDPS	115	30.4	8	2.1	123	32.5	0.84 (0.30–2.34)
Grade
1–4	147	38.9	15	4.0	162	42.9	1	0.01
5–8	209	55.3	7	1.9	216	57.1	0.12 (0.03–0.58)
Color vision
Normal	347	91.8	15	4.0	362	95.8	1	0.00
Defective	9	2.4	7	1.9	16	4.2	19.65 (6.01–64.33)

Note. Statistically significant at 95% CI, ; 1: reference; HTCPS: Holy Trinity Cathedral Primary School; ZDPS: Zeray Deres Primary School; VA: visual acuity; VAI: visual acuity impairment.