TABLE 6.

Factors associated with myopia prevalence – univariate and multivariate logistic regression analysis

Variables	Unadjusted odds ratio	95% CI	p Value	Odds ratio c	95% CI	p Value
Age a
5–10 years (ref)	–
11–12 years	1.63	1.37–1.97	<0.01	0.87	0.68–1.11	0.27
13–16 years	6.89	6.04–7.86	<0.001	2.61	1.40–4.88	0.003
Gender a
Male (ref)
Female	1.05	0.95–1.16	0.36	2.37	2.05–2.73	<0.001
School location a
Suburban (ref)
Urban	2.23	2.04–2.54	<0.001	2.53	1.13–5.68	0.02
Axial length (mm) b	4.76	4.11–5.11	<0.001	4.97	4.18–5.91	<0.001

^a Categorical variables

^b Continuous variable.

^c Odds are adjusted for clustering and all other variables in the regression model.