Traffic-related air pollution and spectacles use in schoolchildren.

Limiting the cross-sectional analyses of residential air pollution to those who had not moved since birth (n = 1689, 61.9%) did not result in a considerable change in direction and strength of the associations, but, as expected, the confidence intervals for NO 2 became wider and the association became nearly statistically significant (OR: 1.14, 95% CI: 0.99, 1.32, p-value = 0.07).

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Similarly, we observed an increase in the risk of using spectacles associated with one-IQR increase in exposure to PM 2.5 absorbance at home but the association was marginally statistically significant.

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