The Effect of a Short-Term Exposure to Lead on the Levels of Essential Metal Ions, Selected Proteins Related to Them, and Oxidative Stress Parameters in Humans

Table 8

The comparison between subgroups of workers with lower and higher BMI based on the median of BMI (25.6 kg/m²). B: whole blood; L: leukocyte; D: a difference between the levels at baseline (1) and at the end of the study period (2).

	Low BMI		High BMI		value
	Mean	SD	Mean	SD
Age (years)	37.44	14.16	44.84	12.22	0.097
Percentage of smokers (%)	0.72	0.46	0.63	0.50	0.569
BMI (kg/m^2)	22.65	1.96	28.69	2.28	<0.001
B-Pb-1 (μg/dl)	9.84	7.56	11.57	7.69	0.494
B-Pb-2 (μg/dl)	50.68	15.57	47.32	12.59	0.475
B-Pb-D (μg/dl)	40.84	13.76	35.77	15.53	0.302
Se-1 (μg/dl)	66.88	10.40	72.67	8.03	0.069
Se-2 (μg/dl)	77.45	9.72	72.03	9.44	0.099
Se-D (μg/dl)	10.56	13.77	−0.64	13.03	0.017
L-SOD-1 (NU/mg P)	17.21	1.52	16.43	2.22	0.237
L-SOD-2 (NU/mg P)	15.08	4.39	18.52	2.76	0.007
L-SOD-D (NU/mg P)	−2.13	3.42	2.09	3.90	0.002
L-Mn-SOD-1 (NU/mg P)	5.61	1.84	5.70	1.92	0.889
L-Mn-SOD-2 (NU/mg P)	3.83	1.59	6.44	4.27	0.024
L-Mn-SOD-D (NU/mg P)	−1.78	2.12	0.74	4.68	0.049
L-CAT-1 (U/mg P)	42.16	10.35	34.62	9.76	0.031
L-CAT-2 (U/mg P)	45.12	10.16	42.36	17.72	0.576
L-CAT-D (U/mg P)	2.96	13.84	7.73	21.33	0.437