Table 2

Results of the regression of bone lead content versus different variables

	r²	n	p Value
Correlations of bone lead with:
Age (control men)	0.19	11	0.2>p>0.1
Age (control women)	0.30	11	0.1>p>0.05
Age (exposed men)	0.83	11	p<0.001
Age (exposed women)	0.69	11	0.005>p>0.001
Age (exposed men and women)	0.86	11	p<0.001
Years of residence (exposed men and women)	0.41	23	p<0.005