Table 3 Association of refractive error and potential factors among school children in Debre Markos District, March 2013

Age

7-11

193

0.013

2.411

1.22-4.832

0.832

1.2

3.079-4.004

12-15

227

1

1

Sex

Male

181

0.037

2.099

1.046-4.212

0.004

3.963

1.556-10.092

Female

239

1

1

Grade level

1-4

240

0.001

3.135

1.604-6.128

0.001

4.823

1.980-11.474

5-8

180

1

1

Using computers regularly

Yes

45

0.027

2.500

1.111-5.625

0.005

4.539

1.589-12.968

No

375

1

1