Table 2.

Summary of estimates of coefficient β for acute effect of four metals on HR in the GAM for single FPM components of interest.

Component	Estimate	SE	p-Value
Ni	3.321	1.628	0.041
V	3.273	2.006	0.103
Cr	2.916	1.787	0.103
Fe	2.997	2.412	0.214