Passive Smoking as a Risk Factor of Dry Eye in Children

Table 3

Gender, vitamin deficiency, and indoor smoking between dry eye and nondry eye groups.

	Patient with nondry eye	Patient with dry eye	Chi test	𝑃
Males	17	63	9.09	0.003
Females	16	16
Smoking positive	6	70	49.53	<0.0001
Smoking negative	26	10
Positive signs of vitamin deficiency	7	12	0.77	0.381
Negative signs of vitamin deficiency	25	68