Table 3.

Adjusted estimates of blood lead and cadmium levels for lung function according to multiple linear regression

Dependent parameters	Estimated	SE	P-value	Estimated	SE	P-value
	Lead			Cadmium
All*
FEV1, L	−0.000006	0.059	0.999	0.003	0.009	0.761
FVC, L	0.009	0.006	0.147	0.029	0.002	0.336
FEV1/FVC, %	−0.002	0.001	0.007	−0.005	0.001	0.001
Never smoker**
FEV1, L	0.0006	0.007	0.930	0.006	0.011	0.602
FVC, L	0.012	0.009	0.164	0.017	0.013	0.197
FEV1/FVC, %	−0.003	0.001	0.007	−0.002	0.002	0.299
Former smoker**
FEV1, L	−0.0002	0.011	0.987	0.045	0.03	0.142
FVC, L	0.0047	0.013	0.707	0.115	0.036	0.001
FEV1/FVC, %	−0.00078	0.002	0.623	−0.011	0.005	0.016
Current smoker**
FEV1, L	0.002	0.009	0.807	−0.022	0.019	0.272
FVC, L	0.008	0.011	0.489	0.019	0.023	0.406
FEV1/FVC, %	−0.001	0.001	0.281	−0.008	0.003	0.002

Notes

^*Adjusted for age, sex, smoking status (never, former, and current smoker), and body mass index;

^**adjusted for age, sex, and body mass index.

Abbreviations: FEV₁, forced expiratory volume in 1 second; FVC, forced vital capacity; SE, standard error.