Table 6.

Multivariate logistic regression for myopic vision impairment (one or both eyes) with grade, gender and locality

Category	Odds ratio, 95% CI (adjusted)	P-value
Grade
6th	Reference
7th	1.2; 0.8–1.7	0.362
8th	1.3; 1.0–1.7	0.036
9th	1.6; 1.3–2.1	<0.001
Gender
Male	Reference
Female	1.3; 0.9–1.8	0.142
Locality
Urban	Reference
Semi-urban	0.4; 0.2–0.6	0.001
Rural	0.5; 0.2–1.2	0.133

Bold italic values refer to statistical significance. CI, confidence interval.