Passive Smoking as a Risk Factor of Dry Eye in Children
Age, body mass index, and smoking parameters between children with dry eye compared to those without dry eye.
Nondry eye group (32)
Dry eye group (80)
Body mass index
Number of cigarettes per day
Duration of smoking exposure (hours /day)
Urinary cotinine levels (μg/L)
Urinary cotinine/creatinine ratio (ng/mg)
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