Table 2: Prevalence of refractive error with regard to some selected characteristics.

Characteristic Students with RE p-value*
N (%) 95% CI
Overall Prevalence 87(22.0) (18.2-26.4)
Place of residence 0.047
Rural 67(24.6) (19.9-30.1)
Urban 18(15.5) (10.1-23.2)
Age group (years) 0.640
6-8 31(23.8) (17.4-31.9)
9-11 43(21.1) (16.1 -27.2)
12-14 9(17.6) (9.6-30.3)
Mother’s education status 0.168
Illiterate 7(10.3) (5.1-19.8)
Basic education 46(23) (17.7-29.3)
University and above 31(25.4) (18.5-33.8)
Father’s education status 0.316
Illiterate 6(19.4) (9.3-36.4)
Basic education 45(19.8) (15.2-25.5)
University and above 34(25.4) (18.8-33.4)
Monthly income (SAR) 0.389
Less than 5,000 20(17.4) (11.6-25.4)
5,000-10,000 28(26.4) (19-35.6)
More than 10,000 36(23.8) (17.8-31.3)
Grades 0.737
First 15(26.8) (17-39.7)
Second 12(21.4) (12.7-33.9)
Third 12(16.2) (9.6-26.3)
Fourth 16(20.5) (13.1-30.8)
Fifth 16(25.4) (16.3-37.4)
Sixth 13(21) (12.7-32.7)

Based on chi-squared test