Blood Lead Levels and Risk Factors among Preschool Children in a Lead Polluted Area in Taizhou, China

Table 3

Factors affecting elevated blood lead levels in the children (logistic regression analysis).

Variable	β	Wald χ^2		95% CI of OR
Sex	0.3266	12.8442	0.0003	1.386 (1.160–1.657)
Age	0.1075	6.5174	0.0107	1.113 (1.025–1.209)
Mother’s education	0.3504	17.5834	<0.0001	1.420 (1.205–1.672)
Father’s occupation	0.1903	4.4029	0.0359	1.210 (1.013–1.445)
Hand washing	−0.1272	5.5541	0.0184	0.881 (0.792–0.979)
Decorative tableware	0.1040	5.0479	0.0247	1.110 (1.013–1.215)
Makeup	0.1727	4.8991	0.0269	1.188 (1.020–1.385)
Residential floor	0.2420	11.7934	0.0006	1.274 (1.109–1.463)