Comparison of Solar Radiation and Myopia Occurrence in South Korean Children

Table 3

Multiple logistic regression analysis to assess the associations of different variables with myopia prevalence.

Socioeconomic factor	Total (n = 1218)
	Odds ratio (95% CI)	value
Annual solar radiation
Age	2.065 (1.751–2.437)	<0.001
Sex (female vs. male)	0.986 (0.763–1.275)	0.917
Income level (high vs. low)	1.256 (0.960–1.644)	0.096
Sunlight factor
Solar radiation (100 MJ/m^2 increase)	0.933 (0.886–0.982)	0.008
Annual sunshine duration
Age	2.060 (1.747–2.429)	<0.001
Sex (female vs. male)	0.985 (0.763–1273)	0.910
Income level (high vs low)	1.245 (0.952–1.629)	0.110
Sunlight factor
Sunshine duration (100 h increase)	0.887 (0.782–1.007)	0.064

CI, confidence interval.