Table 4. Average linear association between log-transformed blood lead and bone lead concentration (tibia and patella) for all the eligible observations with linear mixed models, adjusted for other predictors (with blood lead>0, observation number=1371).

Predictor	Tibia model		Patella model
	Parameter estimate	P value	Parameter estimate	P value
Intercept	1.630	<.0001	1.590	<.0001
Tibia lead (ug/g)	0.0115	<.0001
Patella lead (ug/g)			0.0087	<.0001
Age	0.001	0.76	0.002	0.53
Period	-0.052	<.0001	-0.049	<.0001
Cur. smoking status	0.122	0.06	0.109	0.09
Daily alcohol intake	0.004	<0.0001	0.003	<0.0001
Education	-0.012	0.09	-0.010	0.14