Table 1. Demography of patients included in the study.

	Pre-Lead Exposure	Post-Lead Exposure	Total
Total Patients	29	50	79
Male	10 (34.5%)	18 (36%)	28 (35.4%)
Female	19 (65.5%)	32 (64%)	51 (64.6%)
African American	19	27	46 (58%)
White	8	20	28(35.4%)
Other (Latin, Arabs, etc.)	2	1	3(3.8%)
Mean age at presentation	5.9y	8.2y	N/A
1-12 months old	4 (13.7%)	7 (14%)	11 (13.9%)
13-36 months old	6 (20.7%)	0	6 (7.6%)
3-6 years old	7 (24%)	12 (24%)	19 (24%)
7-12 years old	9 (31%)	21 (42%)	30 (38%)
13-18 years old	3 (10 %)	10 (20%)	13 (16.5%)