Astigmatism Associated with Allergic Conjunctivitis in Urban School Children

Table 1

Demographic characteristic of study subjects.

	Suburban			Urban			Total
	Male	Female	value	Male	Female	value	Male	Female	value
1^st grade	36 (15.9%)	31 (15.6%)	0.425	67 (23.3%)	48 (18.3%)	0.013	103 (20.0%)	79 (17.1%)	0.025
2^nd grade	40 (17.6%)	38 (19.1%)		51 (17.7%)	31 (11.8%)		91 (17.7%)	69 (15.0%)
3^rd grade	36 (15.9%)	38 (19.1%)		53 (18.4%)	50 (19.1%)		89 (17.3%)	88 (19.1%)
4^th grade	43 (18.9%)	23 (11.6%)		49 (17.0%)	39 (14.9%)		92 (17.9%)	62 (13.4%)
5^th grade	44 (19.4%)	40 (20.1%)		42 (14.6%)	47 (17.9%)		86 (16.7%)	87 (18.9%)
6^th grade	28 (12.3%)	29 (14.6%)		26 (9.0%)	47 (17.9%)		54 (10.5%)	76 (16.5%)
Total	227	199		288	262		515	461

value < 0.05.