Astigmatism Associated with Allergic Conjunctivitis in Urban School Children

Table 3

Odds ratios (95% CI) for having allergic conjunctivitis by astigmatism and other covariates in primary school students (n = 945).

	Independent variable	Odds ratios (95% CI)	value
Model 1	Astigmatism (cylindrical diopter)	1.287 (1.010–1.642)	0.042
	Parental history of allergic disease (yes vs. no)	1.778 (1.307–2.418)	<0.001
	Education level of father (college vs. high school)	1.284 (0.889–1.855)	0.182
	Sex (female vs. male)	0.764 (0.571–1.021)	0.069
	Age	1.024 (0.940–1.114)	0.589
Model 2	Astigmatism (cylindrical diopter)	1.281 (1.003–1.635)	0.047
	Parental history of allergic disease (yes vs. no)	1.742 (1.279–2.372)	0.001
	Education level of father (college vs. high school)	1.255 (0.867–1.815)	0.228
	Sex (female vs. male)	0.761 (0.568–1.018)	0.066
	Age	1.028 (0.944–1.119)	0.529
	School location (urban vs suburban)	1.387 (1.033–1.863)	0.030