Table 2: Correlation coefficients between serum MDA level and level of exposure to Cr (VI), age, and work experience in the exposed and unexposed groups
Variable	Exposed Group (n=90)			Unexposed Group (n=30)
	Spearman's ρ	p value		Spearman's ρ	p value
Cr (VI)	0.806	<0.001		—	—
Age	0.090	0.398		0.038	0.844
Work experience	0.155	0.144		-0.113	0.553