Table 2.

Distribution of mothers by overall knowledge scores on lead exposure pre- and postintervention

Mothers’ Knowledge	Pre		Post		χ2	P value
	No	%	No	%
Good	111	44.3	220	87.7%	437.263	0.001
Poor	140	55.7	31	12.3
Mean	8.5 ± 2.3		15.2 ± 2.1